Frequencies for first 10,000 rows of wksht_cd variable in snf_nmrc2540_10_2012_ wksht_cd | Freq. Percent Cum. ------------+----------------------------------- A000000 | 1,155 11.55 11.55 A600000 | 21 0.21 11.76 A6000A0 | 39 0.39 12.15 A6000B0 | 44 0.44 12.59 A6000C0 | 34 0.34 12.93 A6000D0 | 32 0.32 13.25 A700000 | 126 1.26 14.51 A800000 | 185 1.85 16.36 A810001 | 182 1.82 18.18 A810002 | 71 0.71 18.89 B000001 | 1,887 18.87 37.76 B000002 | 1,446 14.46 52.22 B100000 | 1,617 16.17 68.39 C000000 | 230 2.30 70.69 D00A181 | 213 2.13 72.82 D00A182 | 12 0.12 72.94 D00A183 | 144 1.44 74.38 D10A181 | 182 1.82 76.20 D10A182 | 35 0.35 76.55 D10A191 | 137 1.37 77.92 D10A192 | 32 0.32 78.24 E00A181 | 68 0.68 78.92 E10A180 | 47 0.47 79.39 G000000 | 266 2.66 82.05 G100000 | 63 0.63 82.68 G200001 | 96 0.96 83.64 G200002 | 22 0.22 83.86 G300000 | 133 1.33 85.19 S000003 | 6 0.06 85.25 S200001 | 45 0.45 85.70 S300001 | 406 4.06 89.76 S300002 | 272 2.72 92.48 S300003 | 396 3.96 96.44 S300004 | 67 0.67 97.11 S300005 | 84 0.84 97.95 S700000 | 205 2.05 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 19 Apr 2018