Frequencies for first 10,000 rows of smsares variable in natl2002 dataset :

PSMA/MSA of |
  Residence |
     (NCHS) |      Freq.     Percent        Cum.
------------+-----------------------------------
        000 |      5,765       57.65       57.65
        001 |          1        0.01       57.66
        004 |          1        0.01       57.67
        008 |          1        0.01       57.68
        010 |      4,130       41.30       98.98
        032 |         62        0.62       99.60
        038 |          1        0.01       99.61
        072 |          2        0.02       99.63
        077 |          3        0.03       99.66
        122 |          1        0.01       99.67
        129 |          9        0.09       99.76
        184 |          6        0.06       99.82
        188 |         12        0.12       99.94
        287 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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