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

     Doctor |
answers all |
  questions |      Freq.     Percent        Cum.
------------+-----------------------------------
         -8 |         39        0.39        0.39
         -7 |          4        0.04        0.43
          1 |      3,600       36.00       36.43
          2 |      5,254       52.54       88.97
          3 |        303        3.03       92.00
          4 |         36        0.36       92.36
          5 |         56        0.56       92.92
          . |        708        7.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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