Frequencies for contractid variable in pdp2009 dataset : Contract ID | Freq. Percent Cum. ------------+----------------------------------- S0043 | 3 0.12 0.12 S0197 | 3 0.12 0.23 S1030 | 4 0.16 0.39 S2321 | 4 0.16 0.55 S2468 | 2 0.08 0.62 S2505 | 5 0.20 0.82 S2770 | 2 0.08 0.90 S2873 | 3 0.12 1.01 S2874 | 2 0.08 1.09 S2893 | 12 0.47 1.56 S3389 | 2 0.08 1.64 S3440 | 3 0.12 1.76 S3521 | 2 0.08 1.83 S4248 | 2 0.08 1.91 S4496 | 2 0.08 1.99 S4802 | 51 1.99 3.98 S4877 | 2 0.08 4.06 S5540 | 2 0.08 4.14 S5552 | 3 0.12 4.25 S5555 | 2 0.08 4.33 S5557 | 14 0.55 4.88 S5566 | 3 0.12 4.99 S5569 | 2 0.08 5.07 S5580 | 2 0.08 5.15 S5584 | 2 0.08 5.23 S5585 | 1 0.04 5.27 S5593 | 6 0.23 5.50 S5596 | 36 1.40 6.91 S5597 | 150 5.85 12.76 S5601 | 156 6.09 18.85 S5609 | 4 0.16 19.00 S5617 | 153 5.97 24.97 S5644 | 102 3.98 28.95 S5660 | 153 5.97 34.92 S5670 | 75 2.93 37.85 S5674 | 75 2.93 40.77 S5678 | 102 3.98 44.75 S5715 | 9 0.35 45.10 S5726 | 3 0.12 45.22 S5741 | 2 0.08 45.30 S5743 | 21 0.82 46.12 S5753 | 3 0.12 46.23 S5755 | 100 3.90 50.14 S5766 | 6 0.23 50.37 S5768 | 100 3.90 54.27 S5775 | 3 0.12 54.39 S5795 | 3 0.12 54.51 S5803 | 159 6.20 60.71 S5805 | 1 0.04 60.75 S5810 | 153 5.97 66.72 S5820 | 65 2.54 69.25 S5825 | 3 0.12 69.37 S5840 | 2 0.08 69.45 S5857 | 1 0.04 69.49 S5860 | 2 0.08 69.57 S5877 | 4 0.16 69.72 S5884 | 150 5.85 75.58 S5904 | 3 0.12 75.69 S5907 | 3 0.12 75.81 S5915 | 3 0.12 75.93 S5916 | 4 0.16 76.08 S5917 | 41 1.60 77.68 S5921 | 158 6.16 83.85 S5932 | 51 1.99 85.84 S5937 | 1 0.04 85.88 S5946 | 4 0.16 86.03 S5953 | 2 0.08 86.11 S5954 | 3 0.12 86.23 S5960 | 85 3.32 89.54 S5966 | 1 0.04 89.58 S5967 | 102 3.98 93.56 S5983 | 3 0.12 93.68 S5993 | 2 0.08 93.76 S5998 | 47 1.83 95.59 S7694 | 102 3.98 99.57 S8067 | 6 0.23 99.80 S8201 | 1 0.04 99.84 S8465 | 2 0.08 99.92 S8475 | 2 0.08 100.00 ------------+----------------------------------- Total | 2,563 100.00 by Jean Roth , jroth@nber.org , 14 Apr 2016