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 90% - Top 10%] shares split (1913-2014)
Other available data for this indicator

Year	Bottom 90%	Top 10%	Unit
1913	55.42	44.58	Share (%)
1914	54.85	45.15	Share (%)
1915	55.58	44.42	Share (%)
1916	53.54	46.46	Share (%)
1917	53.02	46.98	Share (%)
1918	54.11	45.89	Share (%)
1919	52.40	47.60	Share (%)
1920	54.31	45.69	Share (%)
1921	51.33	48.67	Share (%)
1922	52.28	47.72	Share (%)
1923	54.70	45.30	Share (%)
1924	52.68	47.32	Share (%)
1925	51.05	48.95	Share (%)
1926	50.74	49.26	Share (%)
1927	51.38	48.62	Share (%)
1928	50.24	49.76	Share (%)
1929	51.54	48.46	Share (%)
1930	52.70	47.30	Share (%)
1931	53.14	46.86	Share (%)
1932	51.61	48.39	Share (%)
1933	51.45	48.55	Share (%)
1934	50.21	49.79	Share (%)
1935	51.13	48.87	Share (%)
1936	50.43	49.57	Share (%)
1937	51.58	48.42	Share (%)
1938	51.67	48.33	Share (%)
1939	50.27	49.73	Share (%)
1940	50.17	49.83	Share (%)
1941	52.24	47.76	Share (%)
1942	56.86	43.14	Share (%)
1943	59.80	40.20	Share (%)
1944	61.57	38.43	Share (%)
1945	61.87	38.13	Share (%)
1946	60.46	39.54	Share (%)
1947	60.66	39.34	Share (%)
1948	58.89	41.11	Share (%)
1949	59.37	40.63	Share (%)
1950	58.86	41.14	Share (%)
1951	60.10	39.90	Share (%)
1952	61.21	38.79	Share (%)
1953	62.18	37.82	Share (%)
1954	61.75	38.25	Share (%)
1955	61.20	38.80	Share (%)
1956	61.94	38.06	Share (%)
1957	61.99	38.01	Share (%)
1958	62.02	37.98	Share (%)
1959	61.64	38.36	Share (%)
1960	62.11	37.89	Share (%)
1961	61.94	38.06	Share (%)
1962	61.56	38.44	Share (%)
1963	61.41	38.59	Share (%)
1964	61.27	38.73	Share (%)
1965	61.63	38.37	Share (%)
1966	61.98	38.02	Share (%)
1967	62.20	37.80	Share (%)
1968	62.57	37.43	Share (%)
1969	63.43	36.57	Share (%)
1970	63.55	36.45	Share (%)
1971	63.17	36.83	Share (%)
1972	62.96	37.04	Share (%)
1973	62.89	37.11	Share (%)
1974	63.05	36.95	Share (%)
1975	62.82	37.18	Share (%)
1976	62.73	37.27	Share (%)
1977	62.56	37.44	Share (%)
1978	62.52	37.48	Share (%)
1979	62.37	37.63	Share (%)
1980	62.81	37.19	Share (%)
1981	62.46	37.54	Share (%)
1982	62.05	37.95	Share (%)
1983	61.52	38.48	Share (%)
1984	60.75	39.25	Share (%)
1985	60.63	39.37	Share (%)
1986	60.71	39.29	Share (%)
1987	59.66	40.34	Share (%)
1988	58.22	41.78	Share (%)
1989	58.38	41.62	Share (%)
1990	58.18	41.82	Share (%)
1991	58.19	41.81	Share (%)
1992	57.04	42.96	Share (%)
1993	57.15	42.85	Share (%)
1994	56.89	43.11	Share (%)
1995	56.13	43.87	Share (%)
1996	55.42	44.58	Share (%)
1997	54.83	45.17	Share (%)
1998	54.61	45.39	Share (%)
1999	54.03	45.97	Share (%)
2000	53.51	46.49	Share (%)
2001	54.14	45.86	Share (%)
2002	54.02	45.98	Share (%)
2003	53.61	46.39	Share (%)
2004	52.73	47.27	Share (%)
2005	51.70	48.30	Share (%)
2006	50.89	49.11	Share (%)
2007	51.08	48.92	Share (%)
2008	51.08	48.92	Share (%)
2009	51.38	48.62	Share (%)
2010	50.10	49.90	Share (%)
2011	49.80	50.20	Share (%)
2012	48.63	51.37	Share (%)
2013	49.40	50.60	Share (%)
2014	48.80	51.20	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