Frequencies for trim variable in drg2006 dataset :

       Trim |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        514       91.95       91.95
         40 |          2        0.36       92.31
         50 |          3        0.54       92.84
         60 |          1        0.18       93.02
         70 |          1        0.18       93.20
         90 |          2        0.36       93.56
        110 |          1        0.18       93.74
        130 |          1        0.18       93.92
        150 |          2        0.36       94.28
        170 |          3        0.54       94.81
        190 |          1        0.18       94.99
        200 |          2        0.36       95.35
        220 |          2        0.36       95.71
        230 |          1        0.18       95.89
        240 |          1        0.18       96.06
        260 |          2        0.36       96.42
        270 |          4        0.72       97.14
        280 |          1        0.18       97.32
        290 |          3        0.54       97.85
        300 |          2        0.36       98.21
        330 |          3        0.54       98.75
        360 |          1        0.18       98.93
        370 |          2        0.36       99.28
        380 |          1        0.18       99.46
        400 |          1        0.18       99.64
        410 |          1        0.18       99.82
        420 |          1        0.18      100.00
------------+-----------------------------------
      Total |        559      100.00

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