Graph
Year | Totals | Observation hours |
---|---|---|
1997 | 0 | 63:45 |
1998 | 0 | 48:00 |
1999 | 1 | 79:45 |
2000 | 2 | 114:15 |
2001 | 0 | 130:55 |
2002 | 9 | 311:10 |
2003 | 8 | 434:00 |
2004 | 4 | 539:15 |
2005 | 10 | 741:30 |
2006 | 4 | 671:30 |
2007 | 8 | 742:30 |
2008 | 11 | 700:00 |
2009 | 22 | 629:45 |
2010 | 27 | 570:15 |
2011 | 22 | 520:15 |
2012 | 14 | 543:15 |
2013 | 9 | 410:30 |
2014 | 6 | 500:15 |
2015 | 16 | 683:45 |
2016 | 5 | 688:45 |
2017 | 8 | 671:00 |
2018 | 31 | 739:00 |
2019 | 25 | 737:00 |
2020 | 23 | 795:00 |
2021 | 3 | 228:45 |