Frequencies for first 10,000 rows of totchron variable in nhamcsed2012 dataset :

     Total number of chronic conditions |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
'None' box and all item fields are blan |        806        8.06        8.06
                                      0 |      7,477       74.77       82.83
                                      1 |      1,207       12.07       94.90
                                      2 |        334        3.34       98.24
                                      3 |        124        1.24       99.48
                                      4 |         41        0.41       99.89
                                      5 |          7        0.07       99.96
                                      6 |          4        0.04      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 7 Nov 2016