Frequencies for first 10,000 rows of ssamsa variable in pos1994 dataset : ssa msa | code | Freq. Percent Cum. ------------+----------------------------------- | 16 0.16 0.16 033 | 387 3.87 4.03 034 | 70 0.70 4.73 038 | 35 0.35 5.08 055 | 123 1.23 6.31 074 | 314 3.14 9.45 119 | 56 0.56 10.01 133 | 16 0.16 10.17 150 | 40 0.40 10.57 162 | 52 0.52 11.09 190 | 48 0.48 11.57 193 | 48 0.48 12.05 199 | 73 0.73 12.78 208 | 189 1.89 14.67 211 | 47 0.47 15.14 253 | 48 0.48 15.62 322 | 265 2.65 18.27 328 | 1,584 15.84 34.11 356 | 26 0.26 34.37 359 | 48 0.48 34.85 373 | 161 1.61 36.46 374 | 67 0.67 37.13 379 | 114 1.14 38.27 418 | 421 4.21 42.48 433 | 129 1.29 43.77 448 | 603 6.03 49.80 449 | 41 0.41 50.21 482 | 45 0.45 50.66 488 | 484 4.84 55.50 499 | 264 2.64 58.14 510 | 51 0.51 58.65 523 | 435 4.35 63.00 526 | 311 3.11 66.11 529 | 239 2.39 68.50 534 | 100 1.00 69.50 535 | 39 0.39 69.89 537 | 100 1.00 70.89 580 | 86 0.86 71.75 595 | 31 0.31 72.06 607 | 178 1.78 73.84 613 | 43 0.43 74.27 620 | 90 0.90 75.17 625 | 68 0.68 75.85 665 | 27 0.27 76.12 670 | 31 0.31 76.43 999 | 2,357 23.57 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 17 May 2017