Frequencies for first 10,000 rows of hlt_difreach variable in mcbsatc2013 datas

        Lvl |
  difficult |
extend arms |
      above |
   shoulder |      Freq.     Percent        Cum.
------------+-----------------------------------
         -8 |         15        0.15        0.15
         -7 |          3        0.03        0.18
          1 |      6,829       68.29       68.47
          2 |      1,067       10.67       79.14
          3 |      1,029       10.29       89.43
          4 |        647        6.47       95.90
          5 |        410        4.10      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 24 May 2016