Frequencies for first 10,000 rows of rx2v1c1 variable in namcs2008 dataset :

   for rx2, |
 level 1 of |
multum drug |
category #1 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      4,346       43.46       43.46
        001 |        384        3.84       47.30
        020 |         22        0.22       47.52
        028 |          2        0.02       47.54
        040 |        815        8.15       55.69
        057 |      1,119       11.19       66.88
        081 |         49        0.49       67.37
        087 |        243        2.43       69.80
        097 |        323        3.23       73.03
        105 |        139        1.39       74.42
        115 |        232        2.32       76.74
        122 |        691        6.91       83.65
        133 |        360        3.60       87.25
        218 |         44        0.44       87.69
        242 |        240        2.40       90.09
        254 |        462        4.62       94.71
        331 |          1        0.01       94.72
        358 |        526        5.26       99.98
        899 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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