Frequencies for first 10,000 rows of psrocode variable in pos1988 dataset : PSRO Cod | PR8 - See | PRSO Code | Book | Freq. Percent Cum. ------------+----------------------------------- | 8 0.08 0.08 00 | 1 0.01 0.09 0100 | 1,110 11.10 11.19 0200 | 147 1.47 12.66 0301 | 381 3.81 16.47 0302 | 191 1.91 18.38 0400 | 875 8.75 27.13 0501 | 189 1.89 29.02 0502 | 198 1.98 31.00 0503 | 152 1.52 32.52 0504 | 299 2.99 35.51 0505 | 208 2.08 37.59 0506 | 120 1.20 38.79 0507 | 509 5.09 43.88 0508 | 129 1.29 45.17 0509 | 267 2.67 47.84 0510 | 110 1.10 48.94 0511 | 179 1.79 50.73 0512 | 128 1.28 52.01 0513 | 81 0.81 52.82 0514 | 100 1.00 53.82 0515 | 224 2.24 56.06 0516 | 147 1.47 57.53 0517 | 98 0.98 58.51 0518 | 330 3.30 61.81 0519 | 179 1.79 63.60 0520 | 342 3.42 67.02 0521 | 345 3.45 70.47 0522 | 149 1.49 71.96 0523 | 326 3.26 75.22 0524 | 433 4.33 79.55 0525 | 158 1.58 81.13 0526 | 416 4.16 85.29 0527 | 191 1.91 87.20 0528 | 466 4.66 91.86 0600 | 814 8.14 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016