Frequencies for first 10,000 rows of specr variable in namcs2001 dataset :

  physician |
  specialty |
     recode |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,293       12.93       12.93
          3 |        578        5.78       18.71
          4 |        898        8.98       27.69
          5 |        465        4.65       32.34
          6 |        671        6.71       39.05
          7 |        806        8.06       47.11
          8 |        509        5.09       52.20
          9 |        944        9.44       61.64
         10 |        748        7.48       69.12
         11 |        719        7.19       76.31
         12 |        606        6.06       82.37
         13 |        510        5.10       87.47
         14 |        565        5.65       93.12
         15 |        688        6.88      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016