Frequencies for first 10,000 rows of metallevel variable in plan2016 dataset :

 Metal Level |      Freq.     Percent        Cum.
-------------+-----------------------------------
      Bronze |      1,847       18.47       18.47
Catastrophic |        233        2.33       20.80
        Gold |      1,649       16.49       37.29
        High |        966        9.66       46.95
         Low |        860        8.60       55.55
    Platinum |        525        5.25       60.80
      Silver |      3,920       39.20      100.00
-------------+-----------------------------------
       Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 6 Oct 2016