Frequencies for first 10,000 rows of specialneedsplantype variable in snp2008 dataset :

       Special Needs Plan Type |      Freq.     Percent        Cum.
-------------------------------+-----------------------------------
Chronic or Disabling Condition |      5,554       55.54       55.54
                 Dual-Eligible |      3,908       39.08       94.62
                 Institutional |        538        5.38      100.00
-------------------------------+-----------------------------------
                         Total |     10,000      100.00

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