| Jahr | öffentliche Einrichtungen | freigemeinnützig | private Einrichtungen | insgesamt |
|---|---|---|---|---|
| 2003 | 796 | 856 | 545 | 2.197 |
| 2004 | 780 | 831 | 555 | 2.166 |
| 2005 | 751 | 818 | 570 | 2.139 |
| 2006 | 717 | 803 | 584 | 2.104 |
| 2007 | 677 | 790 | 620 | 2.087 |
| 2008 | 665 | 781 | 637 | 2.083 |
| 2009 | 648 | 769 | 667 | 2.084 |
| 2010 | 630 | 755 | 679 | 2.064 |
| 2011 | 621 | 746 | 678 | 2.045 |
| 2012 | 601 | 719 | 697 | 2.017 |
| 2013 | 596 | 706 | 694 | 1.996 |
| 2014 | 589 | 696 | 695 | 1.980 |
| 2015 | 577 | 679 | 700 | 1.956 |
| 2016 | 570 | 674 | 707 | 1.951 |
| 2017 | 560 | 662 | 720 | 1.942 |
| 2018 | 552 | 650 | 723 | 1.925 |
| 2019 | 545 | 645 | 724 | 1.914 |
| 2020 | 551 | 620 | 732 | 1.903 |
| 2021 | 547 | 607 | 733 | 1.887 |
| 2022 | 539 | 598 | 756 | 1.893 |
| 2023 | 534 | 590 | 750 | 1.874 |