Frequencies for first 10,000 rows of econdp_7 variable in mortterr2007 dataset :

  Part/line |
  number on |
certificate |
          7 |      Freq.     Percent        Cum.
------------+-----------------------------------
          3 |          3        0.03        0.03
          4 |         17        0.17        0.20
          5 |          1        0.01        0.21
          6 |        174        1.74        1.95
          . |      9,805       98.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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