Frequencies for first 10,000 rows of whlbs_lg variable in vehicle dataset : Wheelbase | Long-Auto | Freq. Percent Cum. ------------+----------------------------------- 0 | 3,796 37.96 37.96 898 | 48 0.48 38.44 948 | 63 0.63 39.07 953 | 48 0.48 39.55 964 | 11 0.11 39.66 966 | 1 0.01 39.67 967 | 2 0.02 39.69 969 | 13 0.13 39.82 973 | 18 0.18 40.00 990 | 1 0.01 40.01 996 | 24 0.24 40.25 1001 | 3 0.03 40.28 1099 | 59 0.59 40.87 1100 | 3 0.03 40.90 1110 | 26 0.26 41.16 1122 | 1 0.01 41.17 1125 | 7 0.07 41.24 1127 | 32 0.32 41.56 1130 | 17 0.17 41.73 1150 | 10 0.10 41.83 1160 | 307 3.07 44.90 1170 | 59 0.59 45.49 1174 | 3 0.03 45.52 1175 | 3 0.03 45.55 1180 | 68 0.68 46.23 1190 | 8 0.08 46.31 1200 | 4 0.04 46.35 1210 | 3 0.03 46.38 1220 | 7 0.07 46.45 1240 | 20 0.20 46.65 1250 | 75 0.75 47.40 1270 | 5 0.05 47.45 1276 | 1 0.01 47.46 1645 | 1 0.01 47.47 9999 | 2,319 23.19 70.66 . | 2,934 29.34 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 22 Apr 2016