| Trends in Non-medical Tranquilizer Use Among Those 12 and Older | |
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| Sources: | National Survey on Drug Use and Health National Household Survey on Drug Abuse |
| Multiple Years | |
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| Trends in Non-medical Tranquilizer Use Among Those 12 and Older | |||||||
|---|---|---|---|---|---|---|---|
| Ever Used | Past Year | Past Month | |||||
| Year | Pop. 12 or Older | Number | Percent | Number | Percent | Number | Percent |
| 1979 | 180,343,000 | -- | -- | -- | -- | -- | -- |
| 1982 | 186,440,000 | -- | -- | -- | -- | -- | -- |
| 1985 | 192,605,000 | 14,692,000 | 7.6 | 6,181,000 | 3.2 | 4,282,000 | 2.2 |
| 1988 | 198,347,000 | 8,774,000 | 4.4 | 4,124,000 | 2.1 | 2,512,000 | 1.3 |
| 1991 | 202,859,000 | 10,445,000 | 5.1 | 3,143,000 | 1.5 | 2,232,000 | 1.1 |
| 1992 | 205,713,000 | 9,766,000 | 4.7 | 2,851,000 | 1.4 | 1,646,000 | 0.8 |
| 1993 | 207,199,000 | 8,751,000 | 4.2 | 2,380,000 | 1.1 | 1,223,000 | 0.6 |
| 1994 | 209,411,000 | 8,390,000 | 4.0 | 2,405,000 | 1.1 | 967,000 | 0.5 |
| 1995 | 211,532,000 | 8,251,000 | 3.9 | 2,210,000 | 1.0 | 809,000 | 0.4 |
| 1996 | 214,047,000 | 7,774,000 | 3.6 | 2,430,000 | 1.1 | 952,000 | 0.4 |
| 1997 | 216,206,000 | 6,931,000 | 3.2 | 2,122,000 | 1.0 | 845,000 | 0.4 |
| 1998 | 218,445,000 | 7,726,000 | 3.5 | 1,940,000 | 0.9 | 655,000 | 0.3 |
| 1999 | 221,123,000 | 13,860,000 | 6.3 | 2,728,000 | 1.2 | 1,097,000 | 0.5 |
| 2000 | 223,280,000 | 13,007,000 | 5.8 | 2,731,000 | 1.2 | 1,000,000 | 0.4 |
| 2001 | 225,636,000 | 13,945,000 | 6.2 | 3,673,000 | 1.6 | 1,358,000 | 0.6 |
| 2002 | 235,143,000 | 19,267,000 | 8.2 | 4,849,000 | 2.1 | 1,804,000 | 0.8 |
| 2003 | 237,682,000 | 20,220,000 | 8.5 | 5,051,000 | 2.1 | 1,830,000 | 0.8 |
| 2004 | 240,515,000 | 19,852,000 | 8.3 | 5,068,000 | 2.1 | 1,616,000 | 0.7 |
| 2005 | 243,220,000 | 21,041,000 | 8.7 | 5,249,000 | 2.2 | 1,817,000 | 0.7 |
| 2006 | 246,022,000 | 21,303,000 | 8.7 | 5,058,000 | 2.1 | 1,766,000 | 0.7 |