Graph
Year | Totals | Observation hours |
---|---|---|
1997 | 0 | 39:30 |
1999 | 237 | 19:00 |
2001 | 241 | 594:30 |
2002 | 0 | 0:00 |
2005 | 362 | 77:15 |
2006 | 19 | 32:05 |
2007 | 492 | 88:45 |
2008 | 239 | 100:00 |
2009 | 243 | 52:20 |
2010 | 241 | 48:05 |
2011 | 279 | 88:24 |
2012 | 4 | 36:20 |
2013 | 133 | 37:30 |
2014 | 0 | 30:40 |
2015 | 2307 | 44:40 |
2016 | 1220 | 163:00 |
2017 | 427 | 179:29 |
2018 | 2403 | 380:50 |
2019 | 2130 | 344:15 |
2020 | 7106 | 447:51 |
2021 | 2888 | 462:39 |
2022 | 0 | 37:15 |