Frequencies for first 10,000 rows of rx3v1c1 variable in nhamcsed2009 dataset :

   for rx3, |
 level 1 of |
multum drug |
category #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,121       71.21       71.21
        001 |        430        4.30       75.51
        020 |          1        0.01       75.52
        040 |        159        1.59       77.11
        057 |      1,258       12.58       89.69
        081 |         28        0.28       89.97
        087 |        209        2.09       92.06
        097 |        118        1.18       93.24
        105 |         53        0.53       93.77
        113 |          7        0.07       93.84
        115 |        136        1.36       95.20
        122 |        235        2.35       97.55
        133 |        106        1.06       98.61
        218 |          1        0.01       98.62
        242 |         34        0.34       98.96
        254 |         44        0.44       99.40
        331 |         16        0.16       99.56
        358 |         29        0.29       99.85
        365 |         14        0.14       99.99
        899 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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