Frequencies for first 10,000 rows of benefittype variable in ma2014 dataset :

                   Benefit Type |      Freq.     Percent        Cum.
--------------------------------+-----------------------------------
                                |      6,458       64.58       64.58
Actuarially Equivalent Standard |         94        0.94       65.52
              Basic Alternative |      1,052       10.52       76.04
       Defined Standard Benefit |        536        5.36       81.40
           Enhanced Alternative |      1,860       18.60      100.00
--------------------------------+-----------------------------------
                          Total |     10,000      100.00

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