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| Table 232.90. | Percentage of high school seniors reporting use of alcohol and illicit drugs, by frequency of use and substance used: Selected years, 1975 through 2016 |
| [Standard errors appear in parentheses] | ||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Frequency of use and substance used | 1975 | 1980 | 1985 | 1990 | 1995 | 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | ||||||||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | ||||||||||||||
| Ever used | ||||||||||||||||||||||||||||
| Alcohol1 | 90.4 | (0.69) | 93.2 | (0.46) | 92.2 | (0.48) | 89.5 | (0.57) | 80.7 | (0.73) | 80.3 | (0.80) | 75.1 | (0.81) | 71.0 | (0.84) | 70.0 | (0.88) | 69.4 | (0.90) | 68.2 | (0.95) | 66.0 | (0.95) | 64.0 | (0.94) | 61.2 | (0.99) |
| Any illicit drug | 55.2 | (1.68) | 65.4 | (1.23) | 60.6 | (1.26) | 47.9 | (1.33) | 48.4 | (1.32) | 54.0 | (1.44) | 50.4 | (1.35) | 48.2 | (1.33) | 49.9 | (1.38) | 49.1 | (1.40) | 49.8 | (1.46) | 49.1 | (1.43) | 48.9 | (1.40) | 48.3 | (1.46) |
| Marijuana only | 19.0 | (1.32) | 26.7 | (1.15) | 20.9 | (1.05) | 18.5 | (1.03) | 20.3 | (1.06) | 25.0 | (1.25) | 23.0 | (1.14) | 23.5 | (1.13) | 25.0 | (1.19) | 25.0 | (1.21) | 25.0 | (1.26) | 26.5 | (1.27) | 27.8 | (1.25) | 27.6 | (1.30) |
| Any illicit drug other | ||||||||||||||||||||||||||||
| than marijuana2 | 36.2 | (1.33) | 38.7 | (1.04) | 39.7 | (1.04) | 29.4 | (0.99) | 28.1 | (0.97) | 29.0 | (1.08) | 27.4 | (0.99) | 24.7 | (0.94) | 24.9 | (0.98) | 24.1 | (0.98) | 24.8 | (1.03) | 22.6 | (0.98) | 21.1 | (0.94) | 20.7 | (0.97) |
| Selected drugs | ||||||||||||||||||||||||||||
| Cocaine | 9.0 | (0.73) | 15.7 | (0.72) | 17.3 | (0.74) | 9.4 | (0.59) | 6.0 | (0.48) | 8.6 | (0.62) | 8.0 | (0.56) | 5.5 | (0.46) | 5.2 | (0.47) | 4.9 | (0.46) | 4.5 | (0.46) | 4.6 | (0.46) | 4.0 | (0.42) | 3.7 | (0.42) |
| Heroin | 2.2 | (0.21) | 1.1 | (0.12) | 1.2 | (0.12) | 1.3 | (0.13) | 1.6 | (0.14) | 2.4 | (0.19) | 1.5 | (0.14) | 1.6 | (0.14) | 1.4 | (0.14) | 1.1 | (0.13) | 1.0 | (0.13) | 1.0 | (0.12) | 0.8 | (0.11) | 0.7 | (0.11) |
| LSD | 11.3 | (0.81) | 9.3 | (0.57) | 7.5 | (0.52) | 8.7 | (0.57) | 11.7 | (0.64) | 11.1 | (0.69) | 3.5 | (0.38) | 4.0 | (0.40) | 4.0 | (0.41) | 3.8 | (0.41) | 3.9 | (0.43) | 3.7 | (0.41) | 4.3 | (0.43) | 4.9 | (0.48) |
| Marijuana/hashish | 47.3 | (1.68) | 60.3 | (1.27) | 54.2 | (1.83) | 40.7 | (1.30) | 41.7 | (1.30) | 48.8 | (1.45) | 44.8 | (1.34) | 43.8 | (1.32) | 45.5 | (1.37) | 45.2 | (1.39) | 45.5 | (1.45) | 44.4 | (1.43) | 44.7 | (1.39) | 44.5 | (1.45) |
| PCP | — | (†) | 9.6 | (0.33) | 4.9 | (0.24) | 2.8 | (0.19) | 2.7 | (0.18) | 3.4 | (0.23) | 2.4 | (0.18) | 1.8 | (0.15) | 2.3 | (0.18) | 1.6 | (0.15) | 1.3 | (0.14) | — | (†) | — | (†) | — | (†) |
| Used during past 12 months | ||||||||||||||||||||||||||||
| Alcohol1 | 84.8 | (0.84) | 87.9 | (0.59) | 85.6 | (0.63) | 80.6 | (0.73) | 73.7 | (0.81) | 73.2 | (0.89) | 68.6 | (0.87) | 65.2 | (0.88) | 63.5 | (0.92) | 63.5 | (0.94) | 62.0 | (0.99) | 60.2 | (0.98) | 58.2 | (0.96) | 55.6 | (1.01) |
| Any illicit drug | 45.0 | (1.64) | 53.1 | (1.26) | 46.3 | (1.26) | 32.5 | (1.21) | 39.0 | (1.26) | 40.9 | (1.39) | 38.4 | (1.28) | 38.3 | (1.26) | 40.0 | (1.32) | 39.7 | (1.34) | 40.1 | (1.39) | 38.7 | (1.36) | 38.6 | (1.33) | 38.3 | (1.38) |
| Marijuana only | 18.8 | (1.29) | 22.7 | (1.06) | 18.9 | (0.99) | 14.6 | (0.91) | 19.6 | (1.02) | 20.5 | (1.14) | 18.8 | (1.03) | 21.0 | (1.06) | 22.4 | (1.12) | 22.7 | (1.14) | 22.3 | (1.18) | 22.8 | (1.18) | 23.4 | (1.16) | 24.0 | (1.22) |
| Any illicit drug other | ||||||||||||||||||||||||||||
| than marijuana2 | 26.2 | (1.15) | 30.4 | (0.92) | 27.4 | (0.89) | 17.9 | (0.79) | 19.4 | (0.81) | 20.4 | (0.90) | 19.7 | (0.83) | 17.3 | (0.78) | 17.6 | (0.81) | 17.0 | (0.81) | 17.8 | (0.86) | 15.9 | (0.81) | 15.2 | (0.78) | 14.3 | (0.79) |
| Selected drugs | ||||||||||||||||||||||||||||
| Cocaine | 5.6 | (0.52) | 12.3 | (0.58) | 13.1 | (0.59) | 5.3 | (0.40) | 4.0 | (0.35) | 5.0 | (0.43) | 5.1 | (0.40) | 2.9 | (0.30) | 2.9 | (0.31) | 2.7 | (0.31) | 2.6 | (0.31) | 2.6 | (0.31) | 2.5 | (0.30) | 2.3 | (0.30) |
| Heroin | 1.0 | (0.13) | 0.5 | (0.07) | 0.6 | (0.07) | 0.5 | (0.07) | 1.1 | (0.10) | 1.5 | (0.13) | 0.8 | (0.09) | 0.9 | (0.09) | 0.8 | (0.09) | 0.6 | (0.08) | 0.6 | (0.08) | 0.6 | (0.08) | 0.5 | (0.07) | 0.3 | (0.06) |
| LSD | 7.2 | (0.59) | 6.5 | (0.43) | 4.4 | (0.36) | 5.4 | (0.41) | 8.4 | (0.49) | 6.6 | (0.49) | 1.8 | (0.24) | 2.6 | (0.29) | 2.7 | (0.30) | 2.4 | (0.29) | 2.2 | (0.29) | 2.5 | (0.30) | 2.9 | (0.32) | 3.0 | (0.34) |
| Marijuana/hashish | 40.0 | (1.61) | 48.8 | (1.27) | 40.6 | (1.24) | 27.0 | (1.15) | 34.7 | (1.23) | 36.5 | (1.36) | 33.6 | (1.24) | 34.8 | (1.24) | 36.4 | (1.29) | 36.4 | (1.31) | 36.4 | (1.37) | 35.1 | (1.34) | 34.9 | (1.30) | 35.6 | (1.36) |
| PCP | — | (†) | 4.4 | (0.20) | 2.9 | (0.16) | 1.2 | (0.11) | 1.8 | (0.13) | 2.3 | (0.16) | 1.3 | (0.11) | 1.0 | (0.10) | 1.3 | (0.12) | 0.9 | (0.10) | 0.7 | (0.09) | 0.8 | (0.10) | 1.4 | (0.12) | 1.3 | (0.12) |
| Used during past 30 days | ||||||||||||||||||||||||||||
| Alcohol1 | 68.2 | (1.10) | 72.0 | (0.81) | 65.9 | (0.85) | 57.1 | (0.92) | 51.3 | (0.92) | 50.0 | (1.01) | 47.0 | (0.94) | 41.2 | (0.91) | 40.0 | (0.94) | 41.5 | (0.96) | 39.2 | (0.99) | 37.4 | (0.97) | 35.3 | (0.93) | 33.2 | (0.96) |
| Any illicit drug | 30.7 | (1.35) | 37.2 | (1.09) | 29.7 | (1.03) | 17.2 | (0.87) | 23.8 | (0.98) | 24.9 | (1.09) | 23.1 | (0.99) | 23.8 | (0.99) | 25.2 | (1.04) | 25.2 | (1.06) | 25.2 | (1.10) | 23.7 | (1.06) | 23.6 | (1.03) | 24.4 | (1.09) |
| Marijuana only | 15.3 | (1.06) | 18.8 | (0.88) | 14.8 | (0.80) | 9.2 | (0.67) | 13.8 | (0.79) | 14.5 | (0.89) | 12.8 | (0.78) | 15.2 | (0.83) | 16.3 | (0.89) | 16.8 | (0.91) | 17.0 | (0.95) | 16.0 | (0.92) | 16.0 | (0.89) | 17.5 | (0.96) |
| Any illicit drug other | ||||||||||||||||||||||||||||
| than marijuana2 | 15.4 | (0.80) | 18.4 | (0.66) | 14.9 | (0.60) | 8.0 | (0.47) | 10.0 | (0.52) | 10.4 | (0.58) | 10.3 | (0.54) | 8.6 | (0.49) | 8.9 | (0.51) | 8.4 | (0.51) | 8.2 | (0.52) | 7.7 | (0.50) | 7.6 | (0.49) | 6.9 | (0.48) |
| Selected drugs | ||||||||||||||||||||||||||||
| Cocaine | 1.9 | (0.25) | 5.2 | (0.31) | 6.7 | (0.35) | 1.9 | (0.20) | 1.8 | (0.19) | 2.1 | (0.23) | 2.3 | (0.22) | 1.3 | (0.16) | 1.1 | (0.16) | 1.1 | (0.16) | 1.1 | (0.17) | 1.0 | (0.16) | 1.1 | (0.16) | 0.9 | (0.15) |
| Heroin | 0.4 | (0.08) | 0.2 | (0.04) | 0.3 | (0.05) | 0.2 | (0.04) | 0.6 | (0.08) | 0.7 | (0.09) | 0.5 | (0.07) | 0.4 | (0.06) | 0.4 | (0.07) | 0.3 | (0.06) | 0.3 | (0.06) | 0.4 | (0.07) | 0.3 | (0.06) | 0.2 | (0.05) |
| LSD | 2.3 | (0.28) | 2.3 | (0.21) | 1.6 | (0.18) | 1.9 | (0.20) | 4.0 | (0.28) | 1.6 | (0.20) | 0.7 | (0.12) | 0.8 | (0.13) | 0.8 | (0.13) | 0.8 | (0.14) | 0.8 | (0.14) | 1.0 | (0.16) | 1.1 | (0.16) | 1.0 | (0.16) |
| Marijuana/hashish | 27.1 | (1.30) | 33.7 | (1.07) | 25.7 | (0.98) | 14.0 | (0.80) | 21.2 | (0.94) | 21.6 | (1.04) | 19.8 | (0.94) | 21.4 | (0.95) | 22.6 | (1.00) | 22.9 | (1.02) | 22.7 | (1.06) | 21.2 | (1.02) | 21.3 | (1.00) | 22.5 | (1.06) |
| PCP | — | (†) | 1.4 | (0.11) | 1.6 | (0.12) | 0.4 | (0.06) | 0.6 | (0.08) | 0.9 | (0.10) | 0.7 | (0.08) | 0.8 | (0.09) | 0.8 | (0.09) | 0.5 | (0.07) | 0.4 | (0.07) | — | (†) | — | (†) | — | (†) |
| —Not available. | ||||||||||||||||||||||||||||
| †Not applicable. | ||||||||||||||||||||||||||||
| 1 Survey question changed in 1993; later data are not comparable to figures for earlier years. | ||||||||||||||||||||||||||||
| 2 Other illicit drugs include any use of LSD or other hallucinogens, crack or other cocaine, or heroin, or any use of other narcotics, amphetamines, barbiturates, or tranquilizers not under a doctor's orders. | ||||||||||||||||||||||||||||
| NOTE: Detail may not sum to totals because of rounding. Standard errors were calculated from formulas to perform trend analysis over an interval greater than 1 year (for example, a comparison between 1975 and 1990). A revised questionnaire was used in 1982 and later years to reduce the inappropriate reporting of nonprescription stimulants. This slightly reduced the positive responses for some types of drug abuse. | ||||||||||||||||||||||||||||
| SOURCE: University of Michigan, Institute for Social Research, Monitoring the Future, selected years, 1975 through 2016, retrieved April 20, 2017, from http://monitoringthefuture.org/data/data.html. (This table was prepared April 2017.) | ||||||||||||||||||||||||||||