Frequencies for first 10,000 rows of effective_date variable in nadac20180103 d Effective | Date of the | NADAC Per | Unit Cost | Freq. Percent Cum. ------------+----------------------------------- 21dec2016 | 44 0.44 0.44 26dec2016 | 4 0.04 0.48 31dec2016 | 5 0.05 0.53 01jan2017 | 110 1.10 1.63 04jan2017 | 27 0.27 1.90 06jan2017 | 14 0.14 2.04 18jan2017 | 24 0.24 2.28 23jan2017 | 1 0.01 2.29 17feb2017 | 1 0.01 2.30 22feb2017 | 41 0.41 2.71 23feb2017 | 1 0.01 2.72 28feb2017 | 1 0.01 2.73 02mar2017 | 1 0.01 2.74 08mar2017 | 3 0.03 2.77 15mar2017 | 1 0.01 2.78 17mar2017 | 1 0.01 2.79 22mar2017 | 102 1.02 3.81 23mar2017 | 3 0.03 3.84 01apr2017 | 3 0.03 3.87 03apr2017 | 3 0.03 3.90 07apr2017 | 3 0.03 3.93 12apr2017 | 1 0.01 3.94 19apr2017 | 66 0.66 4.60 24apr2017 | 10 0.10 4.70 02may2017 | 3 0.03 4.73 03may2017 | 1 0.01 4.74 16may2017 | 1 0.01 4.75 17may2017 | 86 0.86 5.61 31may2017 | 1 0.01 5.62 01jun2017 | 134 1.34 6.96 08jun2017 | 16 0.16 7.12 21jun2017 | 87 0.87 7.99 28jun2017 | 1 0.01 8.00 29jun2017 | 5 0.05 8.05 01jul2017 | 5 0.05 8.10 05jul2017 | 2 0.02 8.12 11jul2017 | 42 0.42 8.54 12jul2017 | 1 0.01 8.55 19jul2017 | 180 1.80 10.35 27jul2017 | 1 0.01 10.36 02aug2017 | 1 0.01 10.37 23aug2017 | 120 1.20 11.57 06sep2017 | 5 0.05 11.62 11sep2017 | 1 0.01 11.63 13sep2017 | 3 0.03 11.66 20sep2017 | 160 1.60 13.26 28sep2017 | 1 0.01 13.27 29sep2017 | 4 0.04 13.31 01oct2017 | 1 0.01 13.32 05oct2017 | 1 0.01 13.33 11oct2017 | 3 0.03 13.36 18oct2017 | 230 2.30 15.66 01nov2017 | 1 0.01 15.67 08nov2017 | 5 0.05 15.72 22nov2017 | 519 5.19 20.91 23nov2017 | 3 0.03 20.94 29nov2017 | 3 0.03 20.97 01dec2017 | 1 0.01 20.98 05dec2017 | 11 0.11 21.09 06dec2017 | 1 0.01 21.10 13dec2017 | 5 0.05 21.15 15dec2017 | 12 0.12 21.27 19dec2017 | 6 0.06 21.33 20dec2017 | 7,826 78.26 99.59 21dec2017 | 1 0.01 99.60 22dec2017 | 6 0.06 99.66 27dec2017 | 7 0.07 99.73 01jan2018 | 9 0.09 99.82 03jan2018 | 18 0.18 100.00 ------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 10 Feb 2018