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Table 1-3. YRBS: Prevalence of drinking in the past
30 days, by grade and sex, United States, 1991–2007.
| Sex
and Year | Grade |
| Total | 9th
grade | 10th
grade | 11th
grade | 12th
grade |
| Percent | S.E. | Percent | S.E. | Percent | S.E. | Percent | S.E. | Percent | S.E. |
Both
Sexes |
| 2007 | 44.7 | 1.2 | 35.7 | 1.2 | 41.8 | 1.7 | 49.0 | 1.8 | 54.9 | 2.1 |
| 2005 | 43.3 | 1.4 | 36.2 | 1.2 | 42.0 | 2.0 | 46.0 | 2.0 | 50.8 | 2.1 |
| 2003 | 44.9 | 1.2 | 36.2 | 1.4 | 43.5 | 1.7 | 47.0 | 2.1 | 55.9 | 1.7 |
| 2001 | 47.1 | 1.1 | 41.1 | 1.8 | 45.2 | 1.3 | 49.3 | 1.7 | 55.2 | 1.5 |
| 1999 | 50.0 | 1.3 | 40.6 | 2.2 | 49.7 | 1.9 | 50.9 | 2.0 | 61.7 | 2.3 |
| 1997 | 50.8 | 1.4 | 44.2 | 3.1 | 47.2 | 2.2 | 53.2 | 1.5 | 57.3 | 2.5 |
| 1995 | 51.6 | 1.2 | 45.6 | 1.9 | 49.5 | 2.4 | 53.7 | 1.5 | 56.5 | 1.6 |
| 1993 | 48.0 | 1.1 | 40.5 | 1.8 | 44.0 | 2.0 | 49.7 | 1.7 | 56.4 | 1.4 |
| 1991 | 50.8 | 1.7 | 40.9 | 2.6 | 47.8 | 1.7 | 54.5 | 2.0 | 59.9 | 2.2 |
Male |
| 2007 | 44.7 | 1.4 | 34.3 | 2.1 | 41.4 | 2.1 | 51.5 | 1.7 | 55.6 | 2.8 |
| 2005 | 43.8 | 1.4 | 36.3 | 1.7 | 41.4 | 2.3 | 47.8 | 2.1 | 52.0 | 2.1 |
| 2003 | 43.8 | 1.3 | 33.9 | 1.8 | 42.2 | 1.9 | 47.3 | 2.2 | 56.0 | 1.9 |
| 2001 | 49.2 | 1.4 | 42.2 | 2.3 | 46.9 | 1.6 | 53.6 | 2.2 | 56.6 | 1.6 |
| 1999 | 52.3 | 1.5 | 40.2 | 2.2 | 52.7 | 3.0 | 53.5 | 2.9 | 66.6 | 2.3 |
| 1997 | 53.3 | 1.2 | 44.7 | 3.8 | 48.7 | 2.0 | 57.8 | 1.5 | 60.2 | 2.9 |
| 1995 | 53.2 | 1.3 | 46.9 | 2.4 | 50.4 | 3.1 | 55.5 | 2.0 | 59.5 | 2.0 |
| 1993 | 50.1 | 1.2 | 40.2 | 2.2 | 44.1 | 2.2 | 53.6 | 2.2 | 60.5 | 2.2 |
| 1991 | 52.7 | 2.0 | 40.2 | 3.5 | 48.9 | 1.8 | 58.5 | 2.7 | 62.8 | 2.9 |
Female |
| 2007 | 44.6 | 1.4 | 37.2 | 2.0 | 42.3 | 2.2 | 46.5 | 2.3 | 54.2 | 2.2 |
| 2005 | 42.8 | 1.6 | 36.2 | 1.7 | 42.7 | 1.9 | 44.2 | 2.5 | 49.6 | 2.6 |
| 2003 | 45.8 | 1.3 | 38.5 | 1.7 | 44.9 | 1.8 | 46.8 | 2.4 | 55.5 | 2.0 |
| 2001 | 45.0 | 1.1 | 40.0 | 2.0 | 43.5 | 1.6 | 45.1 | 1.5 | 53.9 | 2.2 |
| 1999 | 47.7 | 1.5 | 41.0 | 3.0 | 46.8 | 1.7 | 48.3 | 2.6 | 56.9 | 3.0 |
| 1997 | 47.8 | 2.0 | 43.7 | 3.4 | 45.3 | 3.8 | 47.8 | 3.2 | 53.7 | 2.8 |
| 1995 | 49.9 | 1.8 | 43.7 | 2.9 | 48.6 | 2.7 | 51.8 | 2.6 | 53.6 | 2.6 |
| 1993 | 45.9 | 1.3 | 40.5 | 2.8 | 44.0 | 2.2 | 45.9 | 2.0 | 52.0 | 1.7 |
| 1991 | 48.8 | 1.6 | 41.5 | 2.6 | 46.6 | 2.4 | 50.2 | 2.1 | 56.9 | 2.0 |
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