Frequencies for tax_year variable in eobmfmt dataset :

   Tax Year |      Freq.     Percent        Cum.
------------+-----------------------------------
       1996 |          1        0.01        0.01
       1999 |          2        0.02        0.03
       2000 |          1        0.01        0.04
       2003 |          1        0.01        0.05
       2004 |          3        0.03        0.07
       2005 |          1        0.01        0.08
       2006 |          2        0.02        0.10
       2008 |          1        0.01        0.11
       2009 |          2        0.02        0.13
       2010 |          9        0.08        0.21
       2011 |         10        0.09        0.31
       2012 |          4        0.04        0.34
       2013 |         33        0.31        0.65
       2014 |         11        0.10        0.75
       2015 |         95        0.88        1.64
       2016 |        274        2.55        4.18
       2017 |      4,191       38.96       43.14
       2018 |      3,911       36.35       79.49
       2019 |         18        0.17       79.66
          . |      2,188       20.34      100.00
------------+-----------------------------------
      Total |     10,758      100.00

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