Frequencies for first 10,000 rows of rx5v1c1 variable in namcs2009 dataset :

   for rx5, |
 level 1 of |
multum drug |
category #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      7,758       77.58       77.58
        001 |         69        0.69       78.27
        020 |         13        0.13       78.40
        040 |        426        4.26       82.66
        057 |        454        4.54       87.20
        081 |         45        0.45       87.65
        087 |        135        1.35       89.00
        097 |        105        1.05       90.05
        105 |         41        0.41       90.46
        113 |         29        0.29       90.75
        115 |        174        1.74       92.49
        122 |        150        1.50       93.99
        133 |         76        0.76       94.75
        218 |         42        0.42       95.17
        242 |        109        1.09       96.26
        254 |         48        0.48       96.74
        358 |        322        3.22       99.96
        365 |          1        0.01       99.97
        899 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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