Frequencies for first 10,000 rows of contractid variable in ma2010 dataset : Contract ID | Freq. Percent Cum. ------------+----------------------------------- | 6 0.06 0.06 H0084 | 24 0.24 0.30 H0104 | 1,101 11.01 11.31 H0150 | 678 6.78 18.09 H0151 | 295 2.95 21.04 H0154 | 732 7.32 28.36 H0302 | 66 0.66 29.02 H0303 | 44 0.44 29.46 H0307 | 65 0.65 30.11 H0316 | 65 0.65 30.76 H0317 | 72 0.72 31.48 H0318 | 10 0.10 31.58 H0319 | 15 0.15 31.73 H0320 | 30 0.30 32.03 H0321 | 80 0.80 32.83 H0351 | 171 1.71 34.54 H0354 | 46 0.46 35.00 H0401 | 14 0.14 35.14 H0540 | 128 1.28 36.42 H1587 | 5 0.05 36.47 H1681 | 225 2.25 38.72 H2012 | 247 2.47 41.19 H2593 | 89 0.89 42.08 H2611 | 16 0.16 42.24 H2649 | 72 0.72 42.96 H2672 | 20 0.20 43.16 H2762 | 193 1.93 45.09 H2944 | 182 1.82 46.91 H4074 | 12 0.12 47.03 H4213 | 193 1.93 48.96 H4931 | 10 0.10 49.06 H5006 | 122 1.22 50.28 H5096 | 6 0.06 50.34 H5214 | 35 0.35 50.69 H5301 | 5 0.05 50.74 H5322 | 6 0.06 50.80 H5421 | 507 5.07 55.87 H5430 | 7 0.07 55.94 H5435 | 84 0.84 56.78 H5509 | 14 0.14 56.92 H5521 | 12 0.12 57.04 H5525 | 8 0.08 57.12 H5580 | 27 0.27 57.39 H5587 | 59 0.59 57.98 H5590 | 8 0.08 58.06 H5698 | 606 6.06 64.12 H5700 | 28 0.28 64.40 H5820 | 149 1.49 65.89 H5985 | 91 0.91 66.80 H6169 | 36 0.36 67.16 H6528 | 119 1.19 68.35 H6609 | 96 0.96 69.31 H6623 | 2 0.02 69.33 H7188 | 89 0.89 70.22 H7352 | 12 0.12 70.34 H8098 | 22 0.22 70.56 H8145 | 296 2.96 73.52 H8319 | 2 0.02 73.54 H9385 | 28 0.28 73.82 H9685 | 2 0.02 73.84 H9699 | 6 0.06 73.90 H9768 | 3 0.03 73.93 R3444 | 308 3.08 77.01 R5826 | 1,720 17.20 94.21 S0128 | 8 0.08 94.29 S0522 | 12 0.12 94.41 S1030 | 10 0.10 94.51 S2505 | 10 0.10 94.61 S4802 | 4 0.04 94.65 S5601 | 32 0.32 94.97 S5617 | 46 0.46 95.43 S5644 | 4 0.04 95.47 S5660 | 38 0.38 95.85 S5670 | 12 0.12 95.97 S5674 | 4 0.04 96.01 S5678 | 16 0.16 96.17 S5755 | 33 0.33 96.50 S5768 | 33 0.33 96.83 S5795 | 10 0.10 96.93 S5803 | 16 0.16 97.09 S5810 | 44 0.44 97.53 S5820 | 26 0.26 97.79 S5884 | 54 0.54 98.33 S5921 | 25 0.25 98.58 S5932 | 16 0.16 98.74 S5960 | 26 0.26 99.00 S5967 | 40 0.40 99.40 S5998 | 5 0.05 99.45 S6506 | 6 0.06 99.51 S7694 | 33 0.33 99.84 S9579 | 16 0.16 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 14 Apr 2016