Frequencies for first 10,000 rows of econdp_4 variable in mortterr2007 dataset :

  Part/line |
  number on |
certificate |
          4 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |          2        0.02        0.02
          2 |         90        0.90        0.92
          3 |        445        4.45        5.37
          4 |      2,697       26.97       32.34
          5 |          2        0.02       32.36
          6 |        572        5.72       38.08
          . |      6,192       61.92      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Dec 2015