Frequencies for first 10,000 rows of cntynat variable in natl1975 dataset : NCHS County | of | Occurence | Freq. Percent Cum. ------------+----------------------------------- 01001 | 4 0.04 0.04 01002 | 104 1.04 1.08 01003 | 59 0.59 1.67 01004 | 3 0.03 1.70 01005 | 31 0.31 2.01 01006 | 11 0.11 2.12 01007 | 27 0.27 2.39 01008 | 370 3.70 6.09 01009 | 84 0.84 6.93 01010 | 35 0.35 7.28 01011 | 56 0.56 7.84 01012 | 47 0.47 8.31 01013 | 83 0.83 9.14 01014 | 35 0.35 9.49 01015 | 3 0.03 9.52 01016 | 115 1.15 10.67 01017 | 173 1.73 12.40 01018 | 3 0.03 12.43 01019 | 2 0.02 12.45 01020 | 116 1.16 13.61 01021 | 22 0.22 13.83 01022 | 56 0.56 14.39 01023 | 148 1.48 15.87 01024 | 295 2.95 18.82 01025 | 135 1.35 20.17 01026 | 17 0.17 20.34 01027 | 161 1.61 21.95 01028 | 276 2.76 24.71 01029 | 33 0.33 25.04 01030 | 55 0.55 25.59 01031 | 62 0.62 26.21 01032 | 49 0.49 26.70 01033 | 52 0.52 27.22 01034 | 19 0.19 27.41 01035 | 356 3.56 30.97 01036 | 136 1.36 32.33 01037 | 1,963 19.63 51.96 01038 | 8 0.08 52.04 01039 | 256 2.56 54.60 01040 | 13 0.13 54.73 01041 | 215 2.15 56.88 01042 | 71 0.71 57.59 01043 | 19 0.19 57.78 01044 | 137 1.37 59.15 01045 | 499 4.99 64.14 01046 | 59 0.59 64.73 01047 | 29 0.29 65.02 01048 | 151 1.51 66.53 01049 | 1,037 10.37 76.90 01050 | 70 0.70 77.60 01051 | 731 7.31 84.91 01052 | 309 3.09 88.00 01053 | 18 0.18 88.18 01054 | 20 0.20 88.38 01055 | 56 0.56 88.94 01056 | 44 0.44 89.38 01057 | 52 0.52 89.90 01058 | 43 0.43 90.33 01059 | 67 0.67 91.00 01060 | 26 0.26 91.26 01061 | 154 1.54 92.80 01062 | 112 1.12 93.92 01063 | 368 3.68 97.60 01064 | 141 1.41 99.01 01065 | 17 0.17 99.18 01066 | 30 0.30 99.48 01067 | 52 0.52 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 3 Jan 2016