Frequencies for first 10,000 rows of smsares variable in natl2000 dataset :

PSMA/MSA of |
  Residence |
     (NCHS) |      Freq.     Percent        Cum.
------------+-----------------------------------
        000 |      3,100       31.00       31.00
        012 |        248        2.48       33.48
        016 |          2        0.02       33.50
        030 |         24        0.24       33.74
        032 |      2,095       20.95       54.69
        053 |          1        0.01       54.70
        063 |         77        0.77       55.47
        072 |        316        3.16       58.63
        077 |        338        3.38       62.01
        094 |        277        2.77       64.78
        129 |        783        7.83       72.61
        133 |          1        0.01       72.62
        135 |          1        0.01       72.63
        184 |      1,253       12.53       85.16
        188 |        883        8.83       93.99
        210 |          1        0.01       94.00
        212 |          2        0.02       94.02
        214 |          1        0.01       94.03
        287 |        394        3.94       97.97
        999 |        203        2.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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