Frequencies for contractid variable in pdp2014 dataset : Contract ID | Freq. Percent Cum. ------------+----------------------------------- | 1 0.06 0.06 S0128 | 50 3.00 3.06 S0197 | 1 0.06 3.12 S0223 | 1 0.06 3.18 S0522 | 43 2.58 5.76 S1030 | 4 0.24 6.00 S1140 | 1 0.06 6.06 S2321 | 4 0.24 6.30 S2468 | 2 0.12 6.42 S2505 | 7 0.42 6.84 S2874 | 2 0.12 6.96 S2893 | 8 0.48 7.44 S3440 | 1 0.06 7.50 S3521 | 1 0.06 7.56 S4219 | 2 0.12 7.68 S4802 | 7 0.42 8.10 S5540 | 2 0.12 8.22 S5552 | 3 0.18 8.40 S5569 | 2 0.12 8.52 S5580 | 2 0.12 8.64 S5584 | 2 0.12 8.76 S5593 | 10 0.60 9.36 S5596 | 36 2.16 11.52 S5601 | 151 9.06 20.58 S5609 | 4 0.24 20.82 S5617 | 153 9.18 29.99 S5660 | 102 6.12 36.11 S5670 | 25 1.50 37.61 S5674 | 25 1.50 39.11 S5715 | 12 0.72 39.83 S5726 | 3 0.18 40.01 S5743 | 14 0.84 40.85 S5753 | 2 0.12 40.97 S5755 | 94 5.64 46.61 S5766 | 6 0.36 46.97 S5768 | 98 5.88 52.85 S5775 | 2 0.12 52.97 S5795 | 2 0.12 53.09 S5805 | 1 0.06 53.15 S5810 | 99 5.94 59.09 S5820 | 55 3.30 62.39 S5840 | 2 0.12 62.51 S5877 | 4 0.24 62.75 S5884 | 150 9.00 71.75 S5904 | 2 0.12 71.87 S5907 | 2 0.12 71.99 S5916 | 4 0.24 72.23 S5921 | 100 6.00 78.22 S5932 | 51 3.06 81.28 S5953 | 2 0.12 81.40 S5960 | 41 2.46 83.86 S5966 | 1 0.06 83.92 S5967 | 100 6.00 89.92 S5983 | 2 0.12 90.04 S5993 | 2 0.12 90.16 S6506 | 2 0.12 90.28 S7230 | 4 0.24 90.52 S7610 | 1 0.06 90.58 S7694 | 51 3.06 93.64 S9014 | 6 0.36 94.00 S9579 | 100 6.00 100.00 ------------+----------------------------------- Total | 1,667 100.00 by Jean Roth , jroth@nber.org , 14 Apr 2016