Frequencies for first 10,000 rows of tax_period variable in eobmfmi dataset : Tax Period | Freq. Percent Cum. ------------+----------------------------------- 199412 | 1 0.01 0.01 199712 | 1 0.01 0.02 199812 | 1 0.01 0.03 200312 | 1 0.01 0.04 200512 | 1 0.01 0.05 200612 | 5 0.05 0.10 200712 | 2 0.02 0.12 200807 | 1 0.01 0.13 200908 | 1 0.01 0.14 200912 | 1 0.01 0.15 201009 | 1 0.01 0.16 201012 | 7 0.07 0.23 201106 | 1 0.01 0.24 201112 | 3 0.03 0.27 201212 | 6 0.06 0.33 201306 | 2 0.02 0.35 201312 | 23 0.23 0.58 201403 | 1 0.01 0.59 201406 | 2 0.02 0.61 201409 | 1 0.01 0.62 201412 | 19 0.19 0.81 201505 | 1 0.01 0.82 201506 | 1 0.01 0.83 201509 | 14 0.14 0.97 201510 | 2 0.02 0.99 201512 | 129 1.29 2.28 201601 | 1 0.01 2.29 201603 | 6 0.06 2.35 201604 | 6 0.06 2.41 201605 | 7 0.07 2.48 201606 | 46 0.46 2.94 201607 | 6 0.06 3.00 201608 | 8 0.08 3.08 201609 | 18 0.18 3.26 201610 | 5 0.05 3.31 201611 | 6 0.06 3.37 201612 | 289 2.89 6.26 201701 | 4 0.04 6.30 201702 | 2 0.02 6.32 201703 | 13 0.13 6.45 201704 | 10 0.10 6.55 201705 | 29 0.29 6.84 201706 | 235 2.35 9.19 201707 | 44 0.44 9.63 201708 | 65 0.65 10.28 201709 | 138 1.38 11.66 201710 | 23 0.23 11.89 201711 | 18 0.18 12.07 201712 | 3,936 39.36 51.43 201801 | 18 0.18 51.61 201802 | 17 0.17 51.78 201803 | 143 1.43 53.21 201804 | 122 1.22 54.43 201805 | 191 1.91 56.34 201806 | 779 7.79 64.13 201807 | 111 1.11 65.24 201808 | 606 6.06 71.30 201809 | 262 2.62 73.92 201810 | 25 0.25 74.17 201811 | 8 0.08 74.25 201812 | 1,012 10.12 84.37 201901 | 9 0.09 84.46 201902 | 6 0.06 84.52 . | 1,548 15.48 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 15 Apr 2019