Frequencies for first 10,000 rows of smsares variable in natl1975 dataset :

   Standard |
Metropolita |
          n |
Statistical |
  Area SMSA |
         of |
  residence |      Freq.     Percent        Cum.
------------+-----------------------------------
        000 |      5,142       51.42       51.42
        003 |          2        0.02       51.44
        014 |          1        0.01       51.45
        024 |          1        0.01       51.46
        026 |      1,951       19.51       70.97
        038 |          1        0.01       70.98
        041 |          2        0.02       71.00
        043 |          1        0.01       71.01
        048 |         66        0.66       71.67
        055 |          1        0.01       71.68
        069 |          1        0.01       71.69
        074 |        237        2.37       74.06
        087 |          1        0.01       74.07
        089 |        571        5.71       79.78
        093 |          1        0.01       79.79
        115 |          1        0.01       79.80
        124 |          1        0.01       79.81
        127 |          1        0.01       79.82
        128 |      1,094       10.94       90.76
        130 |          1        0.01       90.77
        131 |        594        5.94       96.71
        145 |          2        0.02       96.73
        149 |          9        0.09       96.82
        152 |          1        0.01       96.83
        158 |          1        0.01       96.84
        179 |          1        0.01       96.85
        203 |          1        0.01       96.86
        204 |          1        0.01       96.87
        211 |          1        0.01       96.88
        212 |        312        3.12      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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