Frequencies for first 10,000 rows of econdp_3 variable in mortterr2007 dataset :

  Part/line |
  number on |
certificate |
          3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         48        0.48        0.48
          2 |        517        5.17        5.65
          3 |      5,638       56.38       62.03
          4 |        192        1.92       63.95
          6 |        625        6.25       70.20
          . |      2,980       29.80      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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