Frequencies for first 10,000 rows of rx6v1c1 variable in namcs2007 dataset :

   for rx6, |
 level 1 of |
multum drug |
category #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      8,712       87.12       87.12
        001 |         32        0.32       87.44
        020 |          7        0.07       87.51
        028 |          1        0.01       87.52
        040 |        246        2.46       89.98
        057 |        252        2.52       92.50
        081 |         26        0.26       92.76
        087 |         91        0.91       93.67
        097 |         58        0.58       94.25
        105 |         30        0.30       94.55
        115 |         94        0.94       95.49
        122 |        104        1.04       96.53
        133 |         46        0.46       96.99
        218 |         17        0.17       97.16
        242 |         77        0.77       97.93
        254 |         33        0.33       98.26
        358 |        174        1.74      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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