Graph
Year | Totals | Observation hours |
---|---|---|
2000 | 36 | 93:00 |
2001 | 443 | 287:00 |
2002 | 49 | 316:00 |
2003 | 336 | 382:42 |
2004 | 135 | 342:37 |
2005 | 346 | 554:39 |
2006 | 1112 | 657:43 |
2007 | 1857 | 725:19 |
2008 | 7027 | 1488:17 |
2009 | 4220 | 799:54 |
2010 | 3766 | 900:27 |
2011 | 1599 | 834:45 |
2012 | 3071 | 840:54 |
2013 | 5973 | 890:41 |
2014 | 1923 | 864:15 |
2015 | 1384 | 727:16 |
2016 | 793 | 659:29 |
2017 | 5276 | 777:46 |
2018 | 2702 | 766:48 |
2019 | 3068 | 683:31 |
2020 | 1924 | 839:09 |
2021 | 940 | 921:00 |
2022 | 3080 | 853:07 |