Frequencies for first 10,000 rows of state variable in vision dataset :

      state |
     number |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,066       10.66       10.66
          2 |        101        1.01       11.67
          4 |      1,041       10.41       22.08
          5 |        679        6.79       28.87
          6 |      4,302       43.02       71.89
          8 |        687        6.87       78.76
          9 |        342        3.42       82.18
         10 |        166        1.66       83.84
         11 |         26        0.26       84.10
         12 |      1,590       15.90      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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