Βάση εισαγωγής γενικής κατηγορίας
| 1991 | 5030 | 15.7 |
| 1992 | 5151 | 16.1 |
| 1993 | 4862 | 15.2 |
| 1994 | 5533 | 17.3 |
| 1995 | 5474 | 17.1 |
| 1996 | 5386 | 16.8 |
| 1997 | 5351 | 16.7 |
| 1998 | 5241 | 16.4 |
| 1999 | 5371 | 16.8 |
| 2000 | 19339 | 19.3 |
| 2001 | 18936 | 18.9 |
| 2002 | 18452 | 18.5 |
| 2003 | 18650 | 18.7 |
| 2004 | 18712 | 18.7 |
| 2005 | 18585 | 18.6 |
| 2006 | 18492 | 18.5 |
| 2007 | 18607 | 18.6 |
| 2008 | 18566 | 18.6 |
| 2009 | 19004 | 19.0 |
| 2010 | 18842 | 18.8 |
| 2011 | 18333 | 18.3 |
| 2012 | 18314 | 18.3 |
| 2013 | 17767 | 17.8 |
| 2014 | 18670 | 18.7 |
| 2015 | 17833 | 17.8 |
| 2016 | 18100 | 18.1 |
| 2017 | 17691 | 17.7 |
| 2018 | 17824 | 17.8 |
| 2019 | 17575 | 17.6 |
| 2020 | 17450 | 17.5 |
| 2021 | 17996 | 18.0 |
| 2022 | 17910 | 17.9 |
| 2023 | 18260 | 18.3 |
| 2024 | 17920 | 17.9 |