Frequencies for pmcycl_wt variable in parkwork dataset :

 Dry Weight |      Freq.     Percent        Cum.
------------+-----------------------------------
            |        993       99.10       99.10
        354 |          1        0.10       99.20
        355 |          1        0.10       99.30
        365 |          1        0.10       99.40
        393 |          1        0.10       99.50
        403 |          1        0.10       99.60
        549 |          1        0.10       99.70
        600 |          1        0.10       99.80
        612 |          1        0.10       99.90
        676 |          1        0.10      100.00
------------+-----------------------------------
      Total |      1,002      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016