Frequencies for first 10,000 rows of fipstate variable in pos1999 dataset :

 fips state |
       code |      Freq.     Percent        Cum.
------------+-----------------------------------
            |         12        0.12        0.12
         01 |      1,490       14.90       15.02
         02 |        187        1.87       16.89
         04 |      1,087       10.87       27.76
         05 |      1,576       15.76       43.52
         06 |      5,648       56.48      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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