Graph
Year | Totals | Observation hours |
---|---|---|
2006 | 131 | 23:40 |
2007 | 341 | 71:05 |
2008 | 831 | 94:25 |
2009 | 971 | 91:45 |
2010 | 1192 | 159:55 |
2011 | 1052 | 208:42 |
2012 | 1652 | 196:45 |
2013 | 2277 | 239:26 |
2014 | 2081 | 218:15 |
2015 | 917 | 145:35 |
2016 | 1315 | 217:52 |
2017 | 1485 | 191:09 |
2018 | 1676 | 243:43 |
2019 | 906 | 191:56 |
2020 | 500 | 108:23 |
2021 | 1207 | 156:10 |
2022 | 152 | 25:42 |