Frequencies for tax_year variable in eobmfhi dataset :

   Tax Year |      Freq.     Percent        Cum.
------------+-----------------------------------
       1994 |          1        0.01        0.01
       1995 |          1        0.01        0.02
       1996 |          2        0.02        0.05
       1998 |          4        0.05        0.10
       2000 |          1        0.01        0.11
       2002 |          3        0.04        0.15
       2003 |          1        0.01        0.16
       2005 |          2        0.02        0.19
       2006 |          2        0.02        0.21
       2007 |          4        0.05        0.26
       2008 |          2        0.02        0.28
       2009 |          1        0.01        0.30
       2010 |          9        0.11        0.41
       2011 |          6        0.07        0.48
       2012 |          8        0.10        0.58
       2013 |         25        0.31        0.89
       2014 |         12        0.15        1.04
       2015 |        150        1.85        2.89
       2016 |        349        4.31        7.20
       2017 |      3,959       48.87       56.07
       2018 |      1,892       23.36       79.42
       2019 |          4        0.05       79.47
          . |      1,663       20.53      100.00
------------+-----------------------------------
      Total |      8,101      100.00

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