Frequencies for contractid variable in mmp2018 dataset : Contract ID | Freq. Percent Cum. ------------+----------------------------------- | 1 0.28 0.28 H0022 | 12 3.33 3.61 H0137 | 9 2.50 6.11 H0148 | 2 0.56 6.67 H0192 | 2 0.56 7.22 H0281 | 6 1.67 8.89 H0336 | 6 1.67 10.56 H0480 | 8 2.22 12.78 H0811 | 5 1.39 14.17 H0927 | 6 1.67 15.83 H1723 | 35 9.72 25.56 H1977 | 15 4.17 29.72 H2506 | 5 1.39 31.11 H2531 | 12 3.33 34.44 H2533 | 27 7.50 41.94 H3018 | 5 1.39 43.33 H3237 | 2 0.56 43.89 H5172 | 1 0.28 44.17 H5280 | 13 3.61 47.78 H5355 | 2 0.56 48.33 H5441 | 7 1.94 50.28 H6080 | 4 1.11 51.39 H6229 | 2 0.56 51.94 H6308 | 7 1.94 53.89 H6435 | 7 1.94 55.83 H6870 | 3 0.83 56.67 H7172 | 14 3.89 60.56 H7419 | 3 0.83 61.39 H7833 | 1 0.28 61.67 H7844 | 2 0.56 62.22 H7885 | 1 0.28 62.50 H7890 | 1 0.28 62.78 H8016 | 1 0.28 63.06 H8026 | 10 2.78 65.83 H8029 | 6 1.67 67.50 H8046 | 15 4.17 71.67 H8197 | 5 1.39 73.06 H8213 | 39 10.83 83.89 H8258 | 1 0.28 84.17 H8423 | 1 0.28 84.44 H8452 | 12 3.33 87.78 H8490 | 6 1.67 89.44 H8677 | 4 1.11 90.56 H8786 | 4 1.11 91.67 H8851 | 4 1.11 92.78 H9115 | 4 1.11 93.89 H9345 | 4 1.11 95.00 H9487 | 2 0.56 95.56 H9576 | 5 1.39 96.94 H9712 | 2 0.56 97.50 H9869 | 9 2.50 100.00 ------------+----------------------------------- Total | 360 100.00 by Jean Roth , jroth@nber.org , 10 Sep 2018