Frequencies for first 10,000 rows of opccc4x variable in h126f dataset : MODIFIED | CLINICAL | CLASSIFICAT | ION CODE | Freq. Percent Cum. ------------+----------------------------------- -1 | 9,805 98.05 98.05 005 | 4 0.04 98.09 006 | 6 0.06 98.15 007 | 1 0.01 98.16 010 | 1 0.01 98.17 029 | 1 0.01 98.18 041 | 1 0.01 98.19 048 | 2 0.02 98.21 049 | 11 0.11 98.32 052 | 16 0.16 98.48 053 | 11 0.11 98.59 055 | 1 0.01 98.60 084 | 18 0.18 98.78 086 | 1 0.01 98.79 095 | 5 0.05 98.84 098 | 1 0.01 98.85 109 | 1 0.01 98.86 110 | 1 0.01 98.87 116 | 4 0.04 98.91 117 | 4 0.04 98.95 122 | 7 0.07 99.02 126 | 1 0.01 99.03 127 | 2 0.02 99.05 128 | 2 0.02 99.07 140 | 1 0.01 99.08 149 | 2 0.02 99.10 151 | 1 0.01 99.11 157 | 1 0.01 99.12 161 | 1 0.01 99.13 203 | 2 0.02 99.15 204 | 10 0.10 99.25 205 | 1 0.01 99.26 206 | 1 0.01 99.27 210 | 2 0.02 99.29 211 | 24 0.24 99.53 212 | 2 0.02 99.55 213 | 4 0.04 99.59 217 | 1 0.01 99.60 233 | 12 0.12 99.72 235 | 1 0.01 99.73 256 | 10 0.10 99.83 258 | 1 0.01 99.84 653 | 1 0.01 99.85 657 | 15 0.15 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 27 Feb 2018