Age	Description
Children	The population is comprised of individuals below age 20.
Adults	The population is comprised of individuals over age 20.
All Ages	The population is comprised of individuals of all ages.

Population	Description
Female	The population looked at is comprised of female individuals only.
Male	The population looked at is comprised of male individuals only.
Individuals	The base unit is the individual (rather than the household). This is equivalent to assuming no sharing of resources within couples.
Equal-split adults	The base unit is the individual (rather than the household) but resources are split equally within couples.
Tax unit	The base unit is the tax unit defined by national fiscal administrations to measure personal income taxes.

Type	Description
Average	The annual income (or wealth) average within a given group percentile.
Shares	The income (or wealth) share held by a given group percentile.
Thresholds	The minimum income (or wealth) level required to belong to a given group percentile.

Group percentiles	Description
All	Does not separate the population based on the indicator in question (e.g. income or wealth)
Top 1%	Top 1% of the population based on the indicator in question (e.g. income or wealth)
Top 10%	Top 10% of the population based on the indicator in question (e.g. income or wealth)
Bottom 90%	Bottom 90% of the population based on the indicator in question (e.g. income or wealth)
Bottom 50%	Bottom 50% of the population based on the indicator in question (e.g. income or wealth)
...and so on...

Factor national income is the sum of all pretax personal income flows of personal sector accruing directly or indirectly to the individual owners of the production factors, labor and capital, before taking into account the operation of the tax/transfer system, and before taking into account the operation of pension system.

The chart(s) below show(s) how the Pre-tax factor income has being distributed across sets of complementing (they add up to 100%) percentile groups. We have tried to show this data for as many years as possible, but you may find that in some cases the information is just not available for some percentiles.

[Bottom 50% - Next 40% - Top 10%] shares split (1913-2014)
[Bottom 90% - Top 10%] shares split (1913-2014)
[Bottom 99% - Top 1%] shares split (1913-2014)
Other available data for this indicator

Year	Bottom 50%	Next 40%	Top 10%	Unit
1913	---	---	42.10	Share (%)
1914	---	---	42.68	Share (%)
1915	---	---	41.96	Share (%)
1916	---	---	44.18	Share (%)
1917	---	---	44.65	Share (%)
1918	---	---	43.43	Share (%)
1919	---	---	45.23	Share (%)
1920	---	---	43.20	Share (%)
1921	---	---	46.33	Share (%)
1922	---	---	45.32	Share (%)
1923	---	---	42.91	Share (%)
1924	---	---	45.03	Share (%)
1925	---	---	46.80	Share (%)
1926	---	---	47.15	Share (%)
1927	---	---	46.45	Share (%)
1928	---	---	47.64	Share (%)
1929	---	---	46.29	Share (%)
1930	---	---	44.97	Share (%)
1931	---	---	44.55	Share (%)
1932	---	---	46.19	Share (%)
1933	---	---	46.39	Share (%)
1934	---	---	47.63	Share (%)
1935	---	---	46.57	Share (%)
1936	---	---	47.37	Share (%)
1937	---	---	46.11	Share (%)
1938	---	---	46.06	Share (%)
1939	---	---	47.55	Share (%)
1940	---	---	47.74	Share (%)
1941	---	---	45.72	Share (%)
1942	---	---	40.87	Share (%)
1943	---	---	37.82	Share (%)
1944	---	---	35.88	Share (%)
1945	---	---	35.57	Share (%)
1946	---	---	37.03	Share (%)
1947	---	---	36.88	Share (%)
1948	---	---	38.70	Share (%)
1949	---	---	38.21	Share (%)
1950	---	---	38.76	Share (%)
1951	---	---	37.49	Share (%)
1952	---	---	36.35	Share (%)
1953	---	---	35.36	Share (%)
1954	---	---	35.86	Share (%)
1955	---	---	36.49	Share (%)
1956	---	---	35.73	Share (%)
1957	---	---	35.66	Share (%)
1958	---	---	35.61	Share (%)
1959	---	---	36.09	Share (%)
1960	---	---	35.61	Share (%)
1961	---	---	35.81	Share (%)
1962	17.43	46.28	36.29	Share (%)
1964	17.74	45.74	36.52	Share (%)
1966	18.70	45.55	35.75	Share (%)
1967	19.23	45.52	35.25	Share (%)
1968	18.99	45.58	35.42	Share (%)
1969	19.64	46.29	34.07	Share (%)
1970	19.20	46.98	33.82	Share (%)
1971	18.26	47.24	34.50	Share (%)
1972	18.09	47.22	34.68	Share (%)
1973	18.09	46.96	34.95	Share (%)
1974	18.43	47.43	34.15	Share (%)
1975	17.46	47.81	34.73	Share (%)
1976	17.65	47.78	34.57	Share (%)
1977	17.51	47.57	34.91	Share (%)
1978	17.56	47.72	34.72	Share (%)
1979	17.66	47.38	34.96	Share (%)
1980	17.20	48.29	34.51	Share (%)
1981	16.83	48.29	34.89	Share (%)
1982	16.03	48.72	35.26	Share (%)
1983	15.50	48.70	35.80	Share (%)
1984	15.48	47.97	36.54	Share (%)
1985	15.57	47.80	36.63	Share (%)
1986	15.22	48.31	36.48	Share (%)
1987	14.91	47.56	37.53	Share (%)
1988	14.65	46.47	38.88	Share (%)
1989	14.68	46.75	38.56	Share (%)
1990	14.49	46.83	38.68	Share (%)
1991	14.17	47.14	38.70	Share (%)
1992	13.25	46.82	39.93	Share (%)
1993	13.31	46.94	39.75	Share (%)
1994	13.34	46.72	39.93	Share (%)
1995	13.13	46.22	40.65	Share (%)
1996	12.93	45.62	41.44	Share (%)
1997	12.85	45.08	42.08	Share (%)
1998	12.94	44.80	42.26	Share (%)
1999	12.75	44.39	42.86	Share (%)
2000	12.65	43.94	43.41	Share (%)
2001	12.80	44.51	42.69	Share (%)
2002	12.50	44.80	42.70	Share (%)
2003	12.18	44.77	43.05	Share (%)
2004	12.00	44.15	43.85	Share (%)
2005	11.83	43.27	44.90	Share (%)
2006	11.67	42.65	45.67	Share (%)
2007	11.67	42.82	45.51	Share (%)
2008	11.45	43.19	45.36	Share (%)
2009	10.87	44.12	45.02	Share (%)
2010	10.44	43.33	46.25	Share (%)
2011	10.31	43.21	46.49	Share (%)
2012	10.01	42.38	47.61	Share (%)
2013	10.42	42.92	46.66	Share (%)
2014	10.31	42.44	47.24	Share (%)

Year	Bottom 90%	Top 10%	Unit
1913	57.90	42.10	Share (%)
1914	57.32	42.68	Share (%)
1915	58.04	41.96	Share (%)
1916	55.82	44.18	Share (%)
1917	55.35	44.65	Share (%)
1918	56.57	43.43	Share (%)
1919	54.77	45.23	Share (%)
1920	56.80	43.20	Share (%)
1921	53.67	46.33	Share (%)
1922	54.68	45.32	Share (%)
1923	57.09	42.91	Share (%)
1924	54.97	45.03	Share (%)
1925	53.20	46.80	Share (%)
1926	52.85	47.15	Share (%)
1927	53.55	46.45	Share (%)
1928	52.36	47.64	Share (%)
1929	53.71	46.29	Share (%)
1930	55.03	44.97	Share (%)
1931	55.45	44.55	Share (%)
1932	53.81	46.19	Share (%)
1933	53.61	46.39	Share (%)
1934	52.37	47.63	Share (%)
1935	53.43	46.57	Share (%)
1936	52.63	47.37	Share (%)
1937	53.89	46.11	Share (%)
1938	53.94	46.06	Share (%)
1939	52.45	47.55	Share (%)
1940	52.26	47.74	Share (%)
1941	54.28	45.72	Share (%)
1942	59.13	40.87	Share (%)
1943	62.18	37.82	Share (%)
1944	64.12	35.88	Share (%)
1945	64.43	35.57	Share (%)
1946	62.97	37.03	Share (%)
1947	63.12	36.88	Share (%)
1948	61.30	38.70	Share (%)
1949	61.79	38.21	Share (%)
1950	61.24	38.76	Share (%)
1951	62.51	37.49	Share (%)
1952	63.65	36.35	Share (%)
1953	64.64	35.36	Share (%)
1954	64.14	35.86	Share (%)
1955	63.51	36.49	Share (%)
1956	64.27	35.73	Share (%)
1957	64.34	35.66	Share (%)
1958	64.39	35.61	Share (%)
1959	63.91	36.09	Share (%)
1960	64.39	35.61	Share (%)
1961	64.19	35.81	Share (%)
1962	63.71	36.29	Share (%)
1964	63.48	36.52	Share (%)
1966	64.25	35.75	Share (%)
1967	64.75	35.25	Share (%)
1968	64.57	35.42	Share (%)
1969	65.94	34.07	Share (%)
1970	66.18	33.82	Share (%)
1971	65.50	34.50	Share (%)
1972	65.31	34.68	Share (%)
1973	65.05	34.95	Share (%)
1974	65.85	34.15	Share (%)
1975	65.26	34.73	Share (%)
1976	65.42	34.57	Share (%)
1977	65.08	34.91	Share (%)
1978	65.28	34.72	Share (%)
1979	65.04	34.96	Share (%)
1980	65.49	34.51	Share (%)
1981	65.11	34.89	Share (%)
1982	64.75	35.26	Share (%)
1983	64.20	35.80	Share (%)
1984	63.46	36.54	Share (%)
1985	63.37	36.63	Share (%)
1986	63.53	36.48	Share (%)
1987	62.47	37.53	Share (%)
1988	61.12	38.88	Share (%)
1989	61.43	38.56	Share (%)
1990	61.32	38.68	Share (%)
1991	61.30	38.70	Share (%)
1992	60.07	39.93	Share (%)
1993	60.25	39.75	Share (%)
1994	60.06	39.93	Share (%)
1995	59.35	40.65	Share (%)
1996	58.55	41.44	Share (%)
1997	57.92	42.08	Share (%)
1998	57.74	42.26	Share (%)
1999	57.14	42.86	Share (%)
2000	56.59	43.41	Share (%)
2001	57.31	42.69	Share (%)
2002	57.30	42.70	Share (%)
2003	56.95	43.05	Share (%)
2004	56.15	43.85	Share (%)
2005	55.10	44.90	Share (%)
2006	54.32	45.67	Share (%)
2007	54.49	45.51	Share (%)
2008	54.64	45.36	Share (%)
2009	54.99	45.02	Share (%)
2010	53.76	46.25	Share (%)
2011	53.52	46.49	Share (%)
2012	52.39	47.61	Share (%)
2013	53.34	46.66	Share (%)
2014	52.75	47.24	Share (%)

Year	Bottom 99%	Top 1%	Unit
1913	---	18.73	Share (%)
1914	---	19.20	Share (%)
1915	---	18.61	Share (%)
1916	---	20.53	Share (%)
1917	---	19.94	Share (%)
1918	---	18.79	Share (%)
1919	---	20.81	Share (%)
1920	---	18.29	Share (%)
1921	---	18.01	Share (%)
1922	---	17.49	Share (%)
1923	---	16.84	Share (%)
1924	---	17.53	Share (%)
1925	---	19.80	Share (%)
1926	---	21.05	Share (%)
1927	---	20.15	Share (%)
1928	---	21.18	Share (%)
1929	---	20.93	Share (%)
1930	---	17.92	Share (%)
1931	---	14.89	Share (%)
1932	---	13.72	Share (%)
1933	---	14.88	Share (%)
1934	---	16.87	Share (%)
1935	---	17.11	Share (%)
1936	---	19.04	Share (%)
1937	---	18.66	Share (%)
1938	---	16.82	Share (%)
1939	---	18.06	Share (%)
1940	---	19.05	Share (%)
1941	---	19.29	Share (%)
1942	---	18.24	Share (%)
1943	---	16.91	Share (%)
1944	---	14.58	Share (%)
1945	---	14.03	Share (%)
1946	---	13.94	Share (%)
1947	---	14.37	Share (%)
1948	---	15.57	Share (%)
1949	---	15.00	Share (%)
1950	---	15.60	Share (%)
1951	---	14.73	Share (%)
1952	---	13.99	Share (%)
1953	---	13.08	Share (%)
1954	---	13.29	Share (%)
1955	---	13.93	Share (%)
1956	---	13.20	Share (%)
1957	---	13.00	Share (%)
1958	---	12.29	Share (%)
1959	---	12.91	Share (%)
1960	---	12.47	Share (%)
1961	---	12.33	Share (%)
1962	87.45	12.54	Share (%)
1964	87.28	12.72	Share (%)
1966	87.58	12.42	Share (%)
1967	87.96	12.04	Share (%)
1968	87.75	12.25	Share (%)
1969	88.60	11.40	Share (%)
1970	89.28	10.73	Share (%)
1971	88.94	11.06	Share (%)
1972	88.92	11.08	Share (%)
1973	89.04	10.96	Share (%)
1974	89.51	10.49	Share (%)
1975	89.38	10.62	Share (%)
1976	89.56	10.44	Share (%)
1977	89.24	10.75	Share (%)
1978	89.41	10.59	Share (%)
1979	88.91	11.09	Share (%)
1980	89.37	10.63	Share (%)
1981	89.01	11.00	Share (%)
1982	88.82	11.19	Share (%)
1983	88.62	11.38	Share (%)
1984	87.82	12.18	Share (%)
1985	87.76	12.24	Share (%)
1986	88.23	11.77	Share (%)
1987	87.27	12.73	Share (%)
1988	85.63	14.36	Share (%)
1989	86.16	13.83	Share (%)
1990	86.08	13.92	Share (%)
1991	86.65	13.35	Share (%)
1992	85.58	14.41	Share (%)
1993	85.95	14.05	Share (%)
1994	85.86	14.13	Share (%)
1995	85.30	14.70	Share (%)
1996	84.61	15.39	Share (%)
1997	84.02	15.98	Share (%)
1998	83.86	16.14	Share (%)
1999	83.23	16.77	Share (%)
2000	82.64	17.37	Share (%)
2001	83.43	16.57	Share (%)
2002	83.62	16.38	Share (%)
2003	83.40	16.60	Share (%)
2004	82.36	17.63	Share (%)
2005	81.34	18.66	Share (%)
2006	80.69	19.30	Share (%)
2007	80.88	19.12	Share (%)
2008	81.21	18.79	Share (%)
2009	81.97	18.04	Share (%)
2010	80.74	19.27	Share (%)
2011	80.84	19.17	Share (%)
2012	79.70	20.30	Share (%)
2013	80.98	19.02	Share (%)
2014	80.41	19.58	Share (%)

Adults | Individuals | Average
Adults | Equal-split adults | Average
Adults | Tax unit | Average
Adults | Individuals | Share
Adults | Equal-split adults | Share  [Distribution across complementing percentiles]
Adults | Tax unit | Share  [Distribution across complementing percentiles]
Adults | Equal-split adults | Threshold
Adults | Tax unit | Threshold