| 年份 | 中学在校学生数(人) |
| 2025 | |
| 2024 | |
| 2023 | |
| 2022 | |
| 2021 | |
| 2020 | |
| 2019 | |
| 2018 | 21100 |
| 2017 | 20000 |
| 2016 | 19500 |
| 2015 | 19400 |
| 2014 | 20800 |
| 2013 | 13500 |
| 2012 | 14500 |
| 2011 | 14800 |
| 2010 | 11100 |
| 2009 | 16100 |
| 2008 | 18300 |
| 2007 | 20900 |
| 2006 | 23000 |
| 2005 | 22800 |
| 2004 | 32600 |
| 2003 | 26800 |
| 2002 | 36200 |
| 2001 | |
| 2000 | |
| 1999 |
