Frequencies for first 10,000 rows of tax_period variable in eobmfva dataset : Tax Period | Freq. Percent Cum. ------------+----------------------------------- 199609 | 1 0.01 0.01 199706 | 1 0.01 0.02 200112 | 1 0.01 0.03 200512 | 6 0.06 0.09 200607 | 1 0.01 0.10 200612 | 1 0.01 0.11 200701 | 1 0.01 0.12 200812 | 1 0.01 0.13 200901 | 1 0.01 0.14 200906 | 1 0.01 0.15 200912 | 4 0.04 0.19 201012 | 5 0.05 0.24 201112 | 2 0.02 0.26 201212 | 2 0.02 0.28 201306 | 1 0.01 0.29 201312 | 14 0.14 0.43 201402 | 1 0.01 0.44 201406 | 2 0.02 0.46 201412 | 13 0.13 0.59 201503 | 1 0.01 0.60 201504 | 1 0.01 0.61 201506 | 3 0.03 0.64 201509 | 2 0.02 0.66 201510 | 4 0.04 0.70 201511 | 2 0.02 0.72 201512 | 149 1.49 2.21 201601 | 2 0.02 2.23 201603 | 4 0.04 2.27 201604 | 2 0.02 2.29 201605 | 10 0.10 2.39 201606 | 60 0.60 2.99 201607 | 7 0.07 3.06 201608 | 7 0.07 3.13 201609 | 7 0.07 3.20 201610 | 4 0.04 3.24 201611 | 9 0.09 3.33 201612 | 278 2.78 6.11 201701 | 1 0.01 6.12 201702 | 5 0.05 6.17 201703 | 11 0.11 6.28 201704 | 13 0.13 6.41 201705 | 33 0.33 6.74 201706 | 397 3.97 10.71 201707 | 27 0.27 10.98 201708 | 66 0.66 11.64 201709 | 128 1.28 12.92 201710 | 22 0.22 13.14 201711 | 55 0.55 13.69 201712 | 4,014 40.14 53.83 201801 | 28 0.28 54.11 201802 | 23 0.23 54.34 201803 | 127 1.27 55.61 201804 | 93 0.93 56.54 201805 | 217 2.17 58.71 201806 | 1,277 12.77 71.48 201807 | 84 0.84 72.32 201808 | 108 1.08 73.40 201809 | 198 1.98 75.38 201810 | 19 0.19 75.57 201811 | 51 0.51 76.08 201812 | 1,112 11.12 87.20 201901 | 10 0.10 87.30 201902 | 9 0.09 87.39 . | 1,261 12.61 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 15 Apr 2019