Graph
Year | Totals | Observation hours |
---|---|---|
1997 | 0 | 39:30 |
1999 | 0 | 19:00 |
2001 | 237 | 594:30 |
2002 | 0 | 0:00 |
2005 | 20 | 77:15 |
2006 | 16 | 32:05 |
2007 | 44 | 88:45 |
2008 | 43 | 100:00 |
2009 | 10 | 52:20 |
2010 | 13 | 48:05 |
2011 | 26 | 88:24 |
2012 | 0 | 36:20 |
2013 | 85 | 37:30 |
2014 | 26 | 30:40 |
2015 | 25 | 44:40 |
2016 | 41 | 163:00 |
2017 | 169 | 179:29 |
2018 | 167 | 380:50 |
2019 | 189 | 344:15 |
2020 | 420 | 447:51 |