Frequencies for trim variable in drg2007 dataset :

       Trim |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        527       91.02       91.02
         40 |          2        0.35       91.36
         50 |          3        0.52       91.88
         60 |          1        0.17       92.06
         70 |          1        0.17       92.23
         90 |          2        0.35       92.57
        110 |          2        0.35       92.92
        130 |          1        0.17       93.09
        150 |          2        0.35       93.44
        170 |          4        0.69       94.13
        190 |          1        0.17       94.30
        200 |          1        0.17       94.47
        220 |          2        0.35       94.82
        230 |          1        0.17       94.99
        240 |          1        0.17       95.16
        260 |          1        0.17       95.34
        270 |          1        0.17       95.51
        280 |          3        0.52       96.03
        300 |          5        0.86       96.89
        310 |          3        0.52       97.41
        330 |          1        0.17       97.58
        340 |          4        0.69       98.27
        370 |          1        0.17       98.45
        380 |          2        0.35       98.79
        390 |          1        0.17       98.96
        400 |          2        0.35       99.31
        410 |          1        0.17       99.48
        420 |          2        0.35       99.83
        430 |          1        0.17      100.00
------------+-----------------------------------
      Total |        579      100.00

by Jean Roth , jroth@nber.org , 22 Apr 2016