Frequencies for first 10,000 rows of tax_year variable in eobmfmn dataset :

   Tax Year |      Freq.     Percent        Cum.
------------+-----------------------------------
       1997 |          1        0.01        0.01
       1998 |          1        0.01        0.02
       1999 |          1        0.01        0.03
       2000 |          1        0.01        0.04
       2003 |          1        0.01        0.05
       2005 |          1        0.01        0.06
       2006 |          3        0.03        0.09
       2007 |          2        0.02        0.11
       2008 |          1        0.01        0.12
       2009 |          1        0.01        0.13
       2010 |          7        0.07        0.20
       2011 |          7        0.07        0.27
       2012 |         19        0.19        0.46
       2013 |         43        0.43        0.89
       2014 |         47        0.47        1.36
       2015 |        116        1.16        2.52
       2016 |        277        2.77        5.29
       2017 |      4,698       46.98       52.27
       2018 |      3,830       38.30       90.57
       2019 |          6        0.06       90.63
          . |        937        9.37      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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