Frequencies for first 10,000 rows of ssamsa variable in pos1995 dataset : ssa msa | code | Freq. Percent Cum. ------------+----------------------------------- | 14 0.14 0.14 033 | 373 3.73 3.87 034 | 71 0.71 4.58 038 | 37 0.37 4.95 055 | 119 1.19 6.14 074 | 321 3.21 9.35 119 | 53 0.53 9.88 133 | 16 0.16 10.04 150 | 44 0.44 10.48 162 | 52 0.52 11.00 190 | 49 0.49 11.49 193 | 50 0.50 11.99 199 | 79 0.79 12.78 208 | 189 1.89 14.67 211 | 49 0.49 15.16 253 | 49 0.49 15.65 322 | 275 2.75 18.40 328 | 1,537 15.37 33.77 356 | 28 0.28 34.05 359 | 48 0.48 34.53 373 | 165 1.65 36.18 374 | 55 0.55 36.73 379 | 116 1.16 37.89 418 | 398 3.98 41.87 433 | 130 1.30 43.17 448 | 628 6.28 49.45 449 | 43 0.43 49.88 482 | 46 0.46 50.34 488 | 470 4.70 55.04 499 | 253 2.53 57.57 510 | 50 0.50 58.07 523 | 416 4.16 62.23 526 | 286 2.86 65.09 529 | 234 2.34 67.43 534 | 93 0.93 68.36 535 | 34 0.34 68.70 537 | 100 1.00 69.70 580 | 78 0.78 70.48 595 | 31 0.31 70.79 607 | 184 1.84 72.63 613 | 47 0.47 73.10 620 | 89 0.89 73.99 625 | 74 0.74 74.73 665 | 26 0.26 74.99 670 | 34 0.34 75.33 999 | 2,467 24.67 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 26 Jan 2016