Frequencies for first 10,000 rows of fipstate variable in pos1995 dataset :

 fips state |
       code |      Freq.     Percent        Cum.
------------+-----------------------------------
            |         14        0.14        0.14
         01 |      1,576       15.76       15.90
         02 |        173        1.73       17.63
         04 |      1,156       11.56       29.19
         05 |      1,526       15.26       44.45
         06 |      5,555       55.55      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016