Frequencies for first 10,000 rows of ssamsa variable in pos1993 dataset : ssa msa | code | Freq. Percent Cum. ------------+----------------------------------- | 23 0.23 0.23 033 | 411 4.11 4.34 034 | 56 0.56 4.90 038 | 34 0.34 5.24 055 | 124 1.24 6.48 074 | 299 2.99 9.47 083 | 12 0.12 9.59 119 | 59 0.59 10.18 127 | 12 0.12 10.30 133 | 15 0.15 10.45 150 | 39 0.39 10.84 154 | 66 0.66 11.50 162 | 48 0.48 11.98 190 | 44 0.44 12.42 193 | 46 0.46 12.88 195 | 6 0.06 12.94 199 | 67 0.67 13.61 208 | 191 1.91 15.52 211 | 44 0.44 15.96 225 | 9 0.09 16.05 253 | 45 0.45 16.50 322 | 249 2.49 18.99 328 | 1,643 16.43 35.42 356 | 25 0.25 35.67 359 | 47 0.47 36.14 373 | 148 1.48 37.62 374 | 78 0.78 38.40 379 | 107 1.07 39.47 418 | 428 4.28 43.75 433 | 132 1.32 45.07 448 | 573 5.73 50.80 449 | 39 0.39 51.19 472 | 8 0.08 51.27 482 | 44 0.44 51.71 488 | 480 4.80 56.51 499 | 264 2.64 59.15 510 | 51 0.51 59.66 523 | 436 4.36 64.02 526 | 314 3.14 67.16 529 | 239 2.39 69.55 534 | 100 1.00 70.55 535 | 43 0.43 70.98 537 | 109 1.09 72.07 580 | 93 0.93 73.00 595 | 27 0.27 73.27 607 | 171 1.71 74.98 613 | 41 0.41 75.39 620 | 94 0.94 76.33 625 | 72 0.72 77.05 665 | 25 0.25 77.30 670 | 30 0.30 77.60 999 | 2,240 22.40 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016