Graph
Year | Totals | Observation hours |
---|---|---|
1997 | 33 | 63:45 |
1998 | 45 | 48:00 |
1999 | 21 | 79:45 |
2000 | 91 | 114:15 |
2001 | 253 | 130:55 |
2002 | 306 | 311:10 |
2003 | 439 | 434:00 |
2004 | 640 | 539:15 |
2005 | 900 | 741:30 |
2006 | 553 | 671:30 |
2007 | 445 | 742:30 |
2008 | 693 | 700:00 |
2009 | 740 | 629:45 |
2010 | 620 | 570:15 |
2011 | 559 | 520:15 |
2012 | 476 | 543:15 |
2013 | 718 | 410:30 |
2014 | 623 | 500:15 |
2015 | 527 | 683:45 |
2016 | 516 | 688:45 |
2017 | 556 | 671:00 |
2018 | 712 | 739:00 |
2019 | 470 | 737:00 |
2020 | 542 | 795:00 |
2021 | 54 | 111:10 |