Βάση εισαγωγής γενικής κατηγορίας
| 1991 | 5229 | 16.3 |
| 1992 | 5339 | 16.7 |
| 1993 | 5076 | 15.9 |
| 1994 | 5584 | 17.5 |
| 1995 | 5424 | 17.0 |
| 1996 | 5325 | 16.6 |
| 1997 | 5284 | 16.5 |
| 1998 | 5033 | 15.7 |
| 1999 | 5032 | 15.7 |
| 2000 | 19006 | 19.0 |
| 2001 | 18583 | 18.6 |
| 2002 | 17946 | 17.9 |
| 2003 | 18178 | 18.2 |
| 2004 | 18117 | 18.1 |
| 2005 | 17889 | 17.9 |
| 2006 | 17621 | 17.6 |
| 2007 | 17789 | 17.8 |
| 2008 | 17351 | 17.4 |
| 2009 | 17787 | 17.8 |
| 2010 | 17822 | 17.8 |
| 2011 | 16684 | 16.7 |
| 2012 | 16829 | 16.8 |
| 2013 | 16359 | 16.4 |
| 2014 | 17221 | 17.2 |
| 2015 | 16707 | 16.7 |
| 2016 | 16919 | 16.9 |
| 2017 | 16509 | 16.5 |
| 2018 | 16552 | 16.6 |
| 2019 | 17015 | 17.0 |
| 2020 | 16925 | 16.9 |
| 2021 | 17537 | 17.5 |
| 2022 | 17385 | 17.4 |
| 2023 | 17785 | 17.8 |
| 2024 | 17075 | 17.1 |