Frequencies for pharm_ev variable in parkwork dataset :

      first |
    harmful |
      event |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         23        2.11        2.11
          7 |          1        0.09        2.20
          8 |        117       10.74       12.95
          9 |          4        0.37       13.31
         10 |          6        0.55       13.87
         12 |        220       20.20       34.07
         14 |        440       40.40       74.47
         15 |          2        0.18       74.66
         18 |          8        0.73       75.39
         19 |          1        0.09       75.48
         21 |          3        0.28       75.76
         24 |          9        0.83       76.58
         25 |          4        0.37       76.95
         30 |         16        1.47       78.42
         31 |          9        0.83       79.25
         32 |          7        0.64       79.89
         33 |         85        7.81       87.70
         34 |          9        0.83       88.52
         35 |          5        0.46       88.98
         38 |          8        0.73       89.72
         39 |          5        0.46       90.17
         42 |         24        2.20       92.38
         43 |         15        1.38       93.76
         44 |          4        0.37       94.12
         45 |         24        2.20       96.33
         51 |          3        0.28       96.60
         52 |          1        0.09       96.69
         53 |         10        0.92       97.61
         58 |         10        0.92       98.53
         59 |         14        1.29       99.82
         72 |          2        0.18      100.00
------------+-----------------------------------
      Total |      1,089      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016