Graph
Year | Totals | Observation hours |
---|---|---|
1997 | 2 | 63:45 |
1998 | 7 | 48:00 |
1999 | 0 | 79:45 |
2000 | 4 | 114:15 |
2001 | 17 | 130:55 |
2002 | 61 | 311:10 |
2003 | 107 | 434:00 |
2004 | 118 | 539:15 |
2005 | 177 | 741:30 |
2006 | 74 | 671:30 |
2007 | 114 | 742:30 |
2008 | 132 | 700:00 |
2009 | 74 | 629:45 |
2010 | 132 | 570:15 |
2011 | 138 | 520:15 |
2012 | 198 | 543:15 |
2013 | 141 | 410:30 |
2014 | 104 | 500:15 |
2015 | 283 | 683:45 |
2016 | 370 | 688:45 |
2017 | 339 | 671:00 |
2018 | 492 | 739:00 |
2019 | 656 | 737:00 |
2020 | 899 | 795:00 |
2021 | 908 | 787:15 |
2022 | 292 | 401:20 |