Source: Monitoring the Future
| Ratios of Ecstasy to Marijuana Use -- Lifetime Use (1991 - 2005) | |||
|---|---|---|---|
| Year | 12th Grade | 10th Grade | 8th Grade |
| 1991 | -- | -- | -- |
| 1992 | -- | -- | -- |
| 1993 | -- | -- | -- |
| 1994 | -- | -- | -- |
| 1995 | -- | -- | -- |
| 1996 | 0.14 | 0.14 | 0.15 |
| 1997 | 0.14 | 0.13 | 0.14 |
| 1998 | 0.12 | 0.13 | 0.12 |
| 1999 | 0.16 | 0.15 | 0.12 |
| 2000 | 0.23 | 0.18 | 0.21 |
| 2001 | 0.24 | 0.20 | 0.25 |
| 2002 | 0.22 | 0.17 | 0.22 |
| 2003 | 0.18 | 0.15 | 0.18 |
| 2004 | 0.16 | 0.12 | 0.17 |
| 2005 | 0.12 | 0.12 | 0.17 |
| Averages: | 0.18 | 0.15 | 0.18 |
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