Frequencies for first 10,000 rows of gpmed1 variable in nhamcsed2009 dataset :

med 1 given |
in ed or rx |
         at |
  discharge |      Freq.     Percent        Cum.
------------+-----------------------------------
         -9 |         88        0.88        0.88
         -7 |      2,306       23.06       23.94
          1 |      4,125       41.25       65.19
          2 |      2,547       25.47       90.66
          3 |        934        9.34      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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