Frequencies for first 10,000 rows of route variable in drug2014q3 dataset : The route of drug | administration | Freq. Percent Cum. -------------------+----------------------------------- | 4,034 40.34 40.34 CUTANEOUS | 3 0.03 40.37 ENDOCERVICAL | 3 0.03 40.40 EPIDURAL | 8 0.08 40.48 INHALATION | 123 1.23 41.71 INTRA-ARTERIAL | 6 0.06 41.77 INTRAMUSCULAR | 144 1.44 43.21 INTRAOCULAR | 1 0.01 43.22 INTRAPERITONEAL | 3 0.03 43.25 INTRATHECAL | 5 0.05 43.30 INTRAUTERINE | 14 0.14 43.44 INTRAVENOUS | 635 6.35 49.79 INTRAVENOUS BOLUS | 10 0.10 49.89 INTRAVENOUS DRIP | 82 0.82 50.71 INTRAVESICAL | 1 0.01 50.72 NASAL | 8 0.08 50.80 OPHTHALMIC | 26 0.26 51.06 ORAL | 3,285 32.85 83.91 OROPHARINGEAL | 1 0.01 83.92 OTHER | 4 0.04 83.96 PARENTERAL | 3 0.03 83.99 PERINEURAL | 1 0.01 84.00 RECTAL | 19 0.19 84.19 SUBCONJUNCTIVAL | 1 0.01 84.20 SUBCUTANEOUS | 156 1.56 85.76 SUBLINGUAL | 2 0.02 85.78 TOPICAL | 13 0.13 85.91 TRANSDERMAL | 17 0.17 86.08 TRANSMAMMARY | 7 0.07 86.15 TRANSPLACENTAL | 190 1.90 88.05 UNKNOWN | 1,185 11.85 99.90 VAGINAL | 10 0.10 100.00 -------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 19 Apr 2017