Frequencies for first 10,000 rows of stsubres variable in natl1971 dataset :

      State |
 Subcode of |
  Residence |      Freq.     Percent        Cum.
------------+-----------------------------------
         21 |          1        0.01        0.01
         22 |          2        0.02        0.03
         23 |          3        0.03        0.06
         31 |          2        0.02        0.08
         32 |          3        0.03        0.11
         33 |          3        0.03        0.14
         34 |          1        0.01        0.15
         43 |          1        0.01        0.16
         54 |          4        0.04        0.20
         55 |          1        0.01        0.21
         56 |          1        0.01        0.22
         58 |         54        0.54        0.76
         59 |         76        0.76        1.52
         61 |          1        0.01        1.53
         62 |         45        0.45        1.98
         63 |      9,759       97.59       99.57
         64 |         34        0.34       99.91
         72 |          4        0.04       99.95
         74 |          2        0.02       99.97
         84 |          1        0.01       99.98
         85 |          1        0.01       99.99
         93 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 3 Jan 2016