Βάση εισαγωγής γενικής κατηγορίας
| 1991 | 4811 | 15.0 |
| 1992 | 5008 | 15.7 |
| 1993 | 4735 | 14.8 |
| 1994 | 5300 | 16.6 |
| 1995 | 5206 | 16.3 |
| 1996 | 5148 | 16.1 |
| 1997 | 5127 | 16.0 |
| 1998 | 4934 | 15.4 |
| 1999 | 5069 | 15.8 |
| 2000 | 19081 | 19.1 |
| 2001 | 18611 | 18.6 |
| 2002 | 17914 | 17.9 |
| 2003 | 18200 | 18.2 |
| 2004 | 18226 | 18.2 |
| 2005 | 18201 | 18.2 |
| 2006 | 18107 | 18.1 |
| 2007 | 18302 | 18.3 |
| 2008 | 18110 | 18.1 |
| 2009 | 18652 | 18.7 |
| 2010 | 18622 | 18.6 |
| 2011 | 17535 | 17.5 |
| 2012 | 17600 | 17.6 |
| 2013 | 16984 | 17.0 |
| 2014 | 18013 | 18.0 |
| 2015 | 16939 | 16.9 |
| 2016 | 17137 | 17.1 |
| 2017 | 16789 | 16.8 |
| 2018 | 16742 | 16.7 |
| 2019 | 16411 | 16.4 |
| 2020 | 16350 | 16.4 |
| 2021 | 16914 | 16.9 |
| 2022 | 16395 | 16.4 |
| 2023 | 16925 | 16.9 |