| Year | Physics | AP/honors physics |
Engineering | Astronomy | Geology/ earth science |
Biology and chemistry |
Biology, chemistry, and physics |
| Minimum credit earned | 1.0 | 1.0 | 1.0 | 0.5 | 0.5 | 2.0 | 3.0 |
| 1982 | 15.0 | 1.2 | 1.2 | 1.2 | 13.6 | 29.3 | 11.2 |
| 1987 | 20.0 | 1.8 | 2.6 | 1.0 | 13.4 | 41.4 | 16.6 |
| 1990 | 21.6 | 2.0 | 4.2 | 1.2 | 24.7 | 47.5 | 18.8 |
| 1994 | 24.5 | 2.7 | 4.5 | 1.7 | 22.9 | 53.7 | 21.4 |
| 1998 | 28.8 | 3.0 | 6.7 | 1.9 | 20.7 | 59.0 | 25.4 |
| 2000 | 31.4 | 3.9 | 3.9 | 2.8 | 17.4 | 59.4 | 25.1 |
| 2004 | 32.7 | 4.4 | 8.9 | 3.3 | 22.6 | 60.5 | 25.8 |
| NOTE: These data only report the percentage of students who earned a minimum amount of credit in each course while in high school and do not include a count of those courses taken prior to entering high school. In 2004, approximately 95 percent of graduates had taken algebra I before or during high school. |
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| SOURCE: U.S. Department of Education, National Center for Education Statistics. High School and Beyond Longitudinal Study of 1980 Sophomores, “First Follow-up” (HS&B-So:80/82); National Education Longitudinal Study of 1988 (NELS:88/92), “Second Follow-up, High School Transcript Survey, 1992”; Education Longitudinal Study of 2002 (ELS:2002/04), “High School Transcript Study”; and National Assessment of Educational Progress (NAEP), 1987, 1990, 1994, 1998, and 2000 High School Transcript Studies (HSTS). |
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