Graph
Year | Totals | Observation hours |
---|---|---|
1997 | 5 | 63:45 |
1998 | 12 | 48:00 |
1999 | 23 | 79:45 |
2000 | 44 | 114:15 |
2001 | 32 | 130:55 |
2002 | 72 | 311:10 |
2003 | 110 | 434:00 |
2004 | 210 | 539:15 |
2005 | 177 | 741:30 |
2006 | 139 | 671:30 |
2007 | 296 | 742:30 |
2008 | 239 | 700:00 |
2009 | 218 | 629:45 |
2010 | 164 | 570:15 |
2011 | 757 | 520:15 |
2012 | 222 | 543:15 |
2013 | 143 | 410:30 |
2014 | 306 | 500:15 |
2015 | 364 | 683:45 |
2016 | 353 | 688:45 |
2017 | 260 | 671:00 |
2018 | 355 | 739:00 |
2019 | 689 | 737:00 |
2020 | 469 | 795:00 |
2021 | 307 | 787:15 |
2022 | 226 | 404:50 |