Graph
Year | Totals | Observation hours |
---|---|---|
1997 | 125 | 63:45 |
1998 | 66 | 48:00 |
1999 | 39 | 79:45 |
2000 | 30 | 114:15 |
2001 | 173 | 130:55 |
2002 | 183 | 311:10 |
2003 | 90 | 434:00 |
2004 | 330 | 539:15 |
2005 | 297 | 741:30 |
2006 | 200 | 671:30 |
2007 | 199 | 742:30 |
2008 | 181 | 700:00 |
2009 | 724 | 629:45 |
2010 | 397 | 570:15 |
2011 | 387 | 520:15 |
2012 | 313 | 543:15 |
2013 | 218 | 410:30 |
2014 | 675 | 500:15 |
2015 | 181 | 683:45 |
2016 | 134 | 688:45 |
2017 | 252 | 671:00 |
2018 | 104 | 739:00 |
2019 | 117 | 737:00 |
2020 | 63 | 795:00 |
2021 | 18 | 787:15 |
2022 | 2 | 401:20 |