Frequencies for first 10,000 rows of benefittype variable in planreport2015 dataset :

                   Benefit Type |      Freq.     Percent        Cum.
--------------------------------+-----------------------------------
                                |      4,534       45.34       45.34
Actuarially Equivalent Standard |        105        1.05       46.39
              Basic Alternative |      1,784       17.84       64.23
       Defined Standard Benefit |        884        8.84       73.07
           Enhanced Alternative |      2,693       26.93      100.00
--------------------------------+-----------------------------------
                          Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 14 Apr 2016