Frequencies for ptire_sze variable in parkwork dataset : original | tire size | Freq. Percent Cum. ------------+----------------------------------- | 520 47.66 47.66 000000 | 25 2.29 49.95 12R145 | 1 0.09 50.05 13R155 | 3 0.27 50.32 13R175 | 6 0.55 50.87 13R185 | 1 0.09 50.96 14R175 | 14 1.28 52.25 14R185 | 34 3.12 55.36 14R195 | 10 0.92 56.28 14R205 | 5 0.46 56.74 156.00 | 1 0.09 56.83 15FR78 | 1 0.09 56.92 15G78 | 1 0.09 57.01 15H78 | 1 0.09 57.10 15R175 | 3 0.27 57.38 15R185 | 7 0.64 58.02 15R195 | 53 4.86 62.88 15R205 | 61 5.59 68.47 15R215 | 17 1.56 70.03 15R225 | 10 0.92 70.94 15R235 | 14 1.28 72.23 16R195 | 1 0.09 72.32 16R205 | 50 4.58 76.90 16R215 | 44 4.03 80.93 16R225 | 54 4.95 85.88 16R235 | 20 1.83 87.72 16R245 | 11 1.01 88.73 16R255 | 6 0.55 89.28 16R265 | 9 0.82 90.10 16R275 | 1 0.09 90.19 17R205 | 5 0.46 90.65 17R215 | 21 1.92 92.58 17R225 | 24 2.20 94.78 17R235 | 15 1.37 96.15 17R245 | 3 0.27 96.43 17R255 | 2 0.18 96.61 17R265 | 9 0.82 97.43 17R275 | 1 0.09 97.53 18R225 | 4 0.37 97.89 18R235 | 7 0.64 98.53 18R245 | 11 1.01 99.54 18R255 | 1 0.09 99.63 18R275 | 1 0.09 99.73 19R225 | 2 0.18 99.91 19R255 | 1 0.09 100.00 ------------+----------------------------------- Total | 1,091 100.00 by Jean Roth , jroth@nber.org , 22 Oct 2016