Table 6.
Popular opioids according to different years. Note that data for 2020 only included data from January to March; price per gram is in US $.
| 2014 | 2015 | 2019 | 2020 | |||||||||
| Name | Number of listings | Price (per gram), mean (SD) | Name | Number of listings | Price (per gram), mean (SD) | Name | Number of listings | Price (per gram), mean (SD) | Name | Number of listings | Price (per gram), mean (SD) | |
| Heroin | 4251 | 129.5 (99.9) | Heroin | 2408 | 185.6 (138.4) | Heroin | 1697 | 73.0 (49.8) | Heroin | 611 | 67.0 (37.8) | |
| Oxycodone | 3086 | 660.3 (445.3) | Oxycodone | 2079 | 1239.1 (843.0) | Oxycodone | 1078 | 520.8 (444.9) | Oxycodone | 356 | 590.6 (450.4) | |
| Fentanyl | 1397 | 1116.4 (647.5) | Fentanyl | 1450 | 1546 (909.4) | Codeine | 418 | 80.3 (61.1) | Fentanyl | 149 | 154.2 (123.2) | |
| Buprenorphine | 934 | 2764.9 (2007.8) | Buprenorphine | 571 | 4243.7 (3006.1) | Tramadol | 331 | 16.1 (11.7) | Buprenorphine | 90 | 2083.7 (1471.7) | |
| Tramadol | 839 | 21.5 (14.4) | Tramadol | 555 | 29.8 (29.1) | Fentanyl | 282 | 247.8 (172.1) | Hydrocodone | 89 | 1183.1 (374.0) | |