Frequencies for first 10,000 rows of prov2710 variable in posclia1999 dataset :

   prov2710 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,575       75.75       75.75
        001 |      1,797       17.97       93.72
         AZ |        626        6.26       99.98
         M2 |          1        0.01       99.99
        TX5 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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