Frequencies for tax_period variable in eobmfwy dataset :

 Tax Period |      Freq.     Percent        Cum.
------------+-----------------------------------
     199512 |          1        0.02        0.02
     199612 |          1        0.02        0.04
     200012 |          1        0.02        0.06
     200306 |          1        0.02        0.08
     200612 |          1        0.02        0.10
     200706 |          1        0.02        0.12
     200806 |          1        0.02        0.14
     201012 |          3        0.06        0.20
     201109 |          1        0.02        0.22
     201112 |          3        0.06        0.28
     201212 |          2        0.04        0.32
     201304 |          1        0.02        0.34
     201306 |          2        0.04        0.39
     201312 |         14        0.28        0.67
     201406 |          4        0.08        0.75
     201408 |          1        0.02        0.77
     201409 |          1        0.02        0.79
     201411 |          2        0.04        0.83
     201412 |          3        0.06        0.89
     201504 |          3        0.06        0.95
     201509 |          2        0.04        0.99
     201510 |          1        0.02        1.01
     201512 |         41        0.83        1.84
     201602 |          2        0.04        1.88
     201603 |          1        0.02        1.91
     201604 |          2        0.04        1.95
     201605 |          1        0.02        1.97
     201606 |         19        0.39        2.35
     201607 |          1        0.02        2.37
     201608 |          4        0.08        2.45
     201609 |          8        0.16        2.61
     201610 |          2        0.04        2.66
     201611 |          2        0.04        2.70
     201612 |        116        2.35        5.05
     201702 |          4        0.08        5.13
     201703 |          5        0.10        5.23
     201704 |          7        0.14        5.37
     201705 |         15        0.30        5.67
     201706 |        209        4.24        9.91
     201707 |         13        0.26       10.17
     201708 |         27        0.55       10.72
     201709 |         69        1.40       12.12
     201710 |         16        0.32       12.44
     201711 |         16        0.32       12.77
     201712 |      1,563       31.68       44.45
     201801 |          9        0.18       44.63
     201802 |          7        0.14       44.77
     201803 |        102        2.07       46.84
     201804 |         54        1.09       47.93
     201805 |         96        1.95       49.88
     201806 |        912       18.48       68.36
     201807 |         50        1.01       69.38
     201808 |        120        2.43       71.81
     201809 |        130        2.63       74.44
     201810 |         19        0.39       74.83
     201811 |          9        0.18       75.01
     201812 |        511       10.36       85.37
     201901 |          5        0.10       85.47
     201902 |          3        0.06       85.53
          . |        714       14.47      100.00
------------+-----------------------------------
      Total |      4,934      100.00

by Jean Roth , jroth@nber.org , 15 Apr 2019