Frequencies for pharm_ev variable in parkwork dataset :

      first |
    harmful |
      event |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |         17        1.50        1.50
          7 |          1        0.09        1.59
          8 |        112        9.89       11.47
          9 |         16        1.41       12.89
         11 |          3        0.26       13.15
         12 |        234       20.65       33.80
         14 |        482       42.54       76.35
         17 |          2        0.18       76.52
         18 |         12        1.06       77.58
         19 |          3        0.26       77.85
         24 |          2        0.18       78.02
         25 |          3        0.26       78.29
         30 |         19        1.68       79.96
         31 |          9        0.79       80.76
         32 |          4        0.35       81.11
         33 |         76        6.71       87.82
         34 |         19        1.68       89.50
         35 |         10        0.88       90.38
         38 |         14        1.24       91.62
         39 |          8        0.71       92.32
         40 |          1        0.09       92.41
         42 |         23        2.03       94.44
         43 |         12        1.06       95.50
         45 |         14        1.24       96.73
         51 |          2        0.18       96.91
         53 |         16        1.41       98.32
         59 |         17        1.50       99.82
         73 |          2        0.18      100.00
------------+-----------------------------------
      Total |      1,133      100.00

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