Yet another data source documents the enormous surge in American inequality: Post-tax-and-transfer household income growth from the distributional national accounts data, by income percentile

Bottom 90 Bottom 50 Next 40 91-95th 96-99th 99-99.9th Top 0.1
1913 23.7327 33.65331 29.93943 43.27823 75.47623
1914 21.28975 30.44152 27.42943 38.72785 70.84473
1915 22.01303 31.29446 27.63197 33.98987 76.78276
1916 24.03428 35.05713 32.63794 45.75293 95.50515
1917 23.36389 37.55653 35.58478 48.98219 70.30063
1918 25.99977 37.45943 39.75538 51.13678 45.59054
1919 23.7557 29.73864 37.5025 55.97586 66.42215
1920 23.91308 30.49568 36.39877 52.00038 52.00913
1921 20.40423 33.57089 35.97857 46.24904 43.86804
1922 22.56271 35.35251 38.48873 48.60645 46.79869
1923 26.62762 36.18494 40.41201 51.57063 52.83884
1924 25.3325 37.78878 41.67534 53.30806 55.98231
1925 25.04011 35.89191 43.1564 60.36712 66.94126
1926 26.0494 35.2388 44.31057 65.07314 80.33322
1927 25.88253 35.26906 43.68758 62.20689 72.31164
1928 25.59061 36.8098 44.30285 63.26883 81.19631
1929 27.59766 36.22686 45.13929 63.97269 84.32806
1930 25.69753 36.78869 41.43329 53.91076 50.41799
1931 23.58497 37.6386 38.18021 42.38411 23.40733
1932 19.5378 33.37675 36.22934 33.874 12.42559
1933 18.8133 29.89834 35.59108 34.83715 16.7181
1934 20.12877 31.87053 41.05316 44.31979 30.83398
1935 22.40259 36.77853 41.38343 48.20434 35.22401
1936 24.67013 40.19861 42.85473 57.50882 45.48423
1937 26.43228 41.65951 44.5373 62.14962 50.66807
1938 24.79725 42.58223 43.10907 53.47296 34.3556
1939 25.55145 44.95177 46.81794 61.79799 46.51512
1940 27.62901 47.54603 48.92943 67.68232 61.10282
1941 33.88191 54.39828 53.65169 79.19836 73.09964
1942 43.29914 63.3563 55.50446 81.06559 73.31078
1943 52.80965 69.71679 58.40494 83.07906 70.12778
1944 54.60111 83.20119 61.25023 73.92529 58.40418
1945 54.2032 73.59434 58.5029 67.72197 42.88401
1946 47.1023 54.98784 55.75051 65.37271 42.55941
1947 45.61777 51.27523 52.65075 64.54918 52.81662
1948 46.27771 55.32878 56.69584 73.94818 67.30207
1949 44.85111 55.47728 53.61912 68.53701 64.51888
1950 48.95762 59.82028 58.26081 76.67206 69.6535
1951 53.13092 63.30267 61.1851 79.11648 66.05985
1952 55.543 63.20365 60.6588 75.66076 67.4788
1953 58.13027 66.00397 60.82156 74.12246 62.29707
1954 56.74598 64.72895 59.72348 73.76929 61.18403
1955 60.45715 66.59386 64.45841 81.47777 74.45941
1956 62.6146 66.07277 65.53554 78.24851 69.06196
1957 63.07287 64.54181 65.75526 77.86183 67.29979
1958 61.44245 65.657 65.02915 72.07397 56.18065
1959 65.02998 68.06952 68.14701 78.90449 69.33398
1960 66.89607 68.68847 68.1266 76.77248 69.91774
1961 67.78351 69.65426 70.63115 75.09075 67.87351
1962 70.4927 63.64325 74.46108 73.76656 75.63827 80.53871 77.82573
1963 72.34403 64.45871 76.91257 77.00796 79.27725 84.17178 83.4488
1964 74.78534 65.27417 80.29585 80.97379 83.68492 88.60585 90.01243
1965 78.97684 70.13567 84.09917 84.71663 87.38434 91.63466 93.81867
1966 83.00219 74.99717 87.64008 88.19319 90.8142 94.28764 97.31097
1967 85.64931 80.78541 88.46732 87.65472 88.85984 92.36706 88.88887
1968 89.01593 85.16668 91.24607 89.55186 89.20251 91.6852 88.51358
1969 91.25928 88.4355 92.8953 90.5163 88.4021 88.0171 83.84223
1970 89.31669 87.15028 90.57185 88.66994 86.42245 85.17894 75.69672
1971 89.55088 87.09922 90.9713 89.31088 87.57022 86.35819 76.34119
1972 92.38655 90.03742 93.74757 92.96691 92.13266 90.75359 79.82626
1973 96.11671 94.64942 96.96682 96.91853 96.75554 95.51017 81.34194
1974 94.02037 93.52424 94.30781 93.87008 92.52697 90.70497 76.23273
1975 91.01398 90.52585 91.29679 90.96083 89.50955 87.40869 74.26816
1976 94.35718 94.2051 94.44529 94.31208 92.73313 90.32411 76.67994
1977 96.81916 96.52656 96.98868 97.28635 96.48129 94.6759 82.49974
1978 99.88037 99.34863 100.1884 100.8638 100.2407 98.91114 90.22779
1979 100 100 100 100 100 100 100
1980 98.26488 97.61414 98.64191 97.76216 94.80523 93.1143 86.91483
1981 97.68509 96.23014 98.52805 98.91017 97.19851 98.64778 100.612
1982 94.07145 90.60212 96.08148 96.72842 94.56753 95.22981 101.7506
1983 94.64854 88.9539 97.94785 100.3394 97.77981 101.0831 103.9856
1984 98.68139 91.5108 102.8358 107.8385 107.5276 116.219 131.004
1985 100.8055 93.33651 105.1329 109.655 108.4626 118.0252 130.057
1986 102.7875 94.35348 107.6739 111.2332 109.3253 116.9127 110.9831
1987 104.7421 96.2283 109.6748 111.9271 112.8364 128.7529 134.6872
1988 106.8402 97.96563 111.982 115.4286 118.3864 143.0172 175.9767
1989 108.8137 100.2283 113.7879 116.895 119.2596 144.3395 165.6537
1990 108.8275 100.2639 113.789 116.7634 118.5356 144.6014 165.7722
1991 106.9756 98.14099 112.0942 115.7375 118.7417 137.8344 148.6849
1992 107.6168 97.72335 113.3488 117.3251 122.0337 147.7052 168.7361
1993 109.3271 99.80908 114.8416 119.6654 123.0398 142.693 159.3989
1994 112.7897 102.5032 118.7495 124.494 127.9362 146.7308 162.0879
1995 114.2954 103.2037 120.7217 127.2814 132.2493 154.3844 173.5347
1996 116.8251 105.3766 123.458 131.5369 138.125 162.6432 189.7594
1997 120.0619 107.7359 127.2032 136.0553 143.8332 171.3382 212.6514
1998 124.279 111.47 131.7001 140.7231 150.4667 182.4624 217.8013
1999 127.0094 113.8701 134.6219 144.6325 154.4141 192.1739 242.2452
2000 130.2871 116.1185 138.496 149.5242 160.0374 201.6449 262.2195
2001 130.563 116.4413 138.7448 149.1107 157.6435 196.2731 255.3759
2002 129.6873 115.0149 138.188 148.5807 158.6449 198.1229 258.2305
2003 130.7376 114.3935 140.2069 151.4572 159.7162 200.1824 268.4298
2004 133.1071 116.6533 142.6401 154.2173 164.2175 211.3237 298.3971
2005 135.1675 118.907 144.5884 157.2676 168.406 216.9945 327.02
2006 137.0963 120.5917 146.6586 160.8505 174.6956 230.622 345.1448
2007 136.5364 121.2232 145.4084 159.4222 171.626 221.0781 328.095
2008 134.4407 120.4954 142.5202 153.4786 163.4876 212.8995 330.0312
2009 128.613 111.9696 138.2557 148.2443 155.5828 195.6494 318.9889
2010 129.7716 114.2373 138.7717 150.9138 159.7115 205.1275 356.6267
2011 131.4316 114.5713 141.2 154.8323 165.0593 213.0578 348.0072
2012 132.2085 113.8685 142.8342 159.1319 171.7283 226.6272 380.3506
2013 134.7136 116.3695 145.3417 161.0668 174.0647 219.045 330.5724
2014 136.7039 118.4258 147.2938 164.6328 178.6594 227.4947 346.8308

Source: Data are from a new data set compiled by Thomas Piketty, Emmanuel Saez, and Gabriel Zucman.

View the underlying data on epi.org.