Back
Past AP Biology Score Distributions
See how all students performed on past AP Biology exams. The official score distribution table on this page shows the percentages of 1s, 2s, 3s, 4s, and 5s, 3+, total test takers and mean score for each year that data is available.
| Year | 5 | 4 | 3 | 2 | 1 | 3+ | Test Takers | Mean Score |
|---|---|---|---|---|---|---|---|---|
| 2024 | 16.8% | 23.1% | 28.4% | 21.7% | 10.0% | 68.3% | 260,062 | 3.15 |
| 2023 | 14.3% | 23.0% | 27.2% | 23.6% | 12.0% | 64.4% | 239,470 | 3.04 |
| 2022 | 15.0% | 23.1% | 29.7% | 21.6% | 10.5% | 67.8% | 237,338 | 3.11 |
| 2021 | 7.4% | 19.4% | 32.4% | 30.0% | 10.8% | 59.2% | 212,198 | 2.83 |
| 2020 | 9.5% | 22.7% | 36.9% | 24.1% | 6.9% | 69.1% | 233,444 | 3.04 |
| 2019 | 7.2% | 22.2% | 35.3% | 26.6% | 8.8% | 64.7% | 260,816 | 2.92 |
| 2018 | 7.2% | 21.6% | 32.8% | 28.3% | 10.2% | 61.5% | 259,663 | 2.87 |
| 2017 | 6.4% | 21.0% | 36.7% | 27.5% | 8.4% | 64.1% | 254,270 | 2.90 |
| 2016 | 6.6% | 21.0% | 33.6% | 28.8% | 10.1% | 61.1% | 238,080 | 2.85 |
| 2015 | 6.4% | 22.1% | 35.9% | 27.5% | 8.2% | 64.3% | 223,479 | 2.91 |
| 2014 | 6.6% | 22.4% | 25.2% | 27.1% | 8.7% | 64.2% | 213,294 | 2.91 |
| 2013 | 5.5% | 21.6% | 36.2% | 29.3% | 7.4% | 63.3% | 203,189 | 2.88 |
| 2012 | 19.7% | 16.9% | 14.3% | 14.6% | 34.6% | 51.0% | 191,773 | 2.73 |
| 2011 | 18.8% | 16.5% | 15.2% | 14.6% | 34.8% | 50.6% | 184,497 | 2.70 |
| 2010 | 18.7% | 15.1% | 15.4% | 14.1% | 36.6% | 49.2% | 172,512 | 2.65 |
| 2009 | 19.5% | 15.5% | 15.8% | 15.1% | 34.0% | 50.8% | 159,580 | 2.71 |
| 2008 | 18.6% | 15.6% | 16.1% | 15.2% | 34.6% | 50.3% | 154,504 | 2.68 |
| 2007 | 19.3% | 20.3% | 21.2% | 23.2% | 15.9% | 60.8% | 144,796 | 3.04 |
| 2006 | 19.6% | 20.3% | 21.2% | 23.3% | 15.6% | 61.1% | 131,783 | 3.05 |
| 2005 | 18.2% | 20.1% | 22.9% | 23.3% | 15.5% | 61.2% | 121,446 | 3.02 |
| 2004 | 18.9% | 20.2% | 21.9% | 24.6% | 14.4% | 61.0% | 111,104 | 3.05 |
| 2003 | 17.9% | 18.6% | 22.4% | 26.1% | 14.9% | 58.9% | 103,944 | 2.98 |
| 2002 | 17.5% | 22.9% | 24.1% | 23.2% | 12.3% | 64.6% | 97,762 | 3.10 |