Frequencies for first 10,000 rows of rx1v2c2 variable in nhamcsed2007 dataset :

   for rx1, |
 level 2 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,684       86.84       86.84
        004 |          1        0.01       86.85
        005 |         29        0.29       87.14
        012 |         16        0.16       87.30
        015 |        124        1.24       88.54
        053 |         78        0.78       89.32
        064 |         39        0.39       89.71
        065 |        283        2.83       92.54
        083 |        146        1.46       94.00
        098 |          5        0.05       94.05
        101 |          1        0.01       94.06
        106 |         14        0.14       94.20
        109 |         93        0.93       95.13
        117 |          8        0.08       95.21
        123 |        109        1.09       96.30
        124 |          9        0.09       96.39
        125 |         13        0.13       96.52
        127 |          4        0.04       96.56
        129 |        261        2.61       99.17
        130 |          1        0.01       99.18
        136 |          9        0.09       99.27
        151 |         16        0.16       99.43
        251 |         39        0.39       99.82
        289 |          2        0.02       99.84
        293 |          5        0.05       99.89
        320 |          2        0.02       99.91
        332 |          6        0.06       99.97
        340 |          2        0.02       99.99
        377 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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