Frequencies for backsurgeryper1000medicareenroll variable in 1993_surg_discharg Back | Surgery per | 1000 | Medicare | Enrollees | 1993 | Freq. Percent Cum. ------------+----------------------------------- 1.280418 | 1 1.92 1.92 1.31484 | 1 1.92 3.85 1.396984 | 1 1.92 5.77 1.506737 | 1 1.92 7.69 1.560553 | 1 1.92 9.62 1.768919 | 1 1.92 11.54 1.933049 | 1 1.92 13.46 2.072206 | 1 1.92 15.38 2.077704 | 1 1.92 17.31 2.111791 | 1 1.92 19.23 2.163159 | 1 1.92 21.15 2.171107 | 1 1.92 23.08 2.177495 | 1 1.92 25.00 2.191626 | 1 1.92 26.92 2.231421 | 1 1.92 28.85 2.236868 | 1 1.92 30.77 2.256913 | 1 1.92 32.69 2.323216 | 1 1.92 34.62 2.369666 | 1 1.92 36.54 2.395297 | 1 1.92 38.46 2.404167 | 1 1.92 40.38 2.420147 | 1 1.92 42.31 2.433249 | 1 1.92 44.23 2.436164 | 1 1.92 46.15 2.441165 | 1 1.92 48.08 2.454425 | 1 1.92 50.00 2.464443 | 1 1.92 51.92 2.477507 | 1 1.92 53.85 2.480932 | 1 1.92 55.77 2.497758 | 1 1.92 57.69 2.559182 | 1 1.92 59.62 2.560492 | 1 1.92 61.54 2.56327 | 1 1.92 63.46 2.588065 | 1 1.92 65.38 2.595081 | 1 1.92 67.31 2.691912 | 1 1.92 69.23 2.693045 | 1 1.92 71.15 2.740507 | 1 1.92 73.08 2.752665 | 1 1.92 75.00 2.752681 | 1 1.92 76.92 2.794116 | 1 1.92 78.85 2.89859 | 1 1.92 80.77 2.905961 | 1 1.92 82.69 2.937168 | 1 1.92 84.62 2.980846 | 1 1.92 86.54 3.094801 | 1 1.92 88.46 3.257298 | 1 1.92 90.38 3.307627 | 1 1.92 92.31 4.011163 | 1 1.92 94.23 4.159788 | 1 1.92 96.15 4.171928 | 1 1.92 98.08 4.566954 | 1 1.92 100.00 ------------+----------------------------------- Total | 52 100.00 by Jean Roth , jroth@nber.org , 14 Mar 2018