Graph
Year | Totals | Observation hours |
---|---|---|
1997 | 2238 | 39:30 |
1999 | 433 | 19:00 |
2001 | 15214 | 594:30 |
2002 | 0 | 0:00 |
2005 | 699 | 77:15 |
2006 | 481 | 32:05 |
2007 | 1332 | 88:45 |
2008 | 2841 | 100:00 |
2009 | 802 | 52:20 |
2010 | 1188 | 48:05 |
2011 | 616 | 88:24 |
2012 | 1486 | 36:20 |
2013 | 608 | 37:30 |
2014 | 1339 | 30:40 |
2015 | 668 | 44:40 |
2016 | 2863 | 163:00 |
2017 | 6930 | 179:29 |
2018 | 9992 | 380:50 |
2019 | 14889 | 344:15 |
2020 | 10696 | 447:51 |