| 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | |||||||
| Course | Number of | Average | Number of | Average | Number of | Average | Number of | Average | Number of | Average | Number of | Average |
| Level | Sections | Enrollment | Sections | Enrollment | Sections | Enrollment | Sections | Enrollment | Sections | Enrollment | Sections | Enrollment |
| < 100 | 39 | 16.7 | 35 | 16.7 | 28 | 18.2 | 23 | 22.6 | 24 | 23.1 | 26 | 18.8 |
| 100 | 392 | 38.0 | 391 | 37.0 | 412 | 35.7 | 391 | 38.5 | 385 | 37.8 | 396 | 37.1 |
| 200 | 317 | 32.1 | 296 | 31.5 | 294 | 31.0 | 303 | 30.9 | 297 | 31.7 | 295 | 31.5 |
| 300 | 192 | 22.3 | 204 | 22.8 | 204 | 21.8 | 203 | 22.6 | 210 | 22.7 | 207 | 22.1 |
| 400 | 121 | 19.3 | 119 | 17.6 | 124 | 17.8 | 119 | 18.4 | 137 | 17.9 | 145 | 17.2 |
| 500 | 81 | 10.5 | 80 | 10.0 | 78 | 11.1 | 79 | 10.2 | 74 | 10.0 | 64 | 11.7 |
| Total | 1,142 | 29.1 | 1,125 | 28.4 | 1,140 | 27.9 | 1,118 | 29.1 | 1,127 | 28.8 | 1,133 | 28.5 |
| *Lecture classes with an enrollment of 1 have been reclassified | ||||||||||||
| as independent studies for the purpose of this analysis. | ||||||||||||