Graph
Year | Totals | Observation hours |
---|---|---|
2006 | 284 | 23:40 |
2007 | 1960 | 71:05 |
2008 | 4001 | 94:25 |
2009 | 2359 | 91:45 |
2010 | 3340 | 159:55 |
2011 | 3332 | 208:42 |
2012 | 7460 | 196:45 |
2013 | 4536 | 239:26 |
2014 | 4604 | 218:15 |
2015 | 1899 | 145:35 |
2016 | 2127 | 217:52 |
2017 | 6643 | 191:09 |
2018 | 4750 | 243:43 |
2019 | 5750 | 191:56 |
2020 | 3759 | 108:23 |
2021 | 6413 | 156:10 |
2022 | 6300 | 112:25 |