Frequencies for first 10,000 rows of grntlgcl_spclty_srvc_cd variable in pos2007 dataset :

       srv: |
gerontologi |
        cal |
  specialty |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,682       86.82       86.82
          0 |      1,301       13.01       99.83
          1 |         13        0.13       99.96
          3 |          4        0.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 17 May 2017