Graph
Year | Totals | Observation hours |
---|---|---|
2006 | 277 | 61:32 |
2007 | 650 | 211:28 |
2008 | 153 | 460:04 |
2009 | 894 | 365:00 |
2010 | 7176 | 637:04 |
2011 | 7494 | 348:08 |
2012 | 1761 | 333:29 |
2013 | 4704 | 281:38 |
2014 | 3021 | 156:47 |
2015 | 217 | 117:20 |
2016 | 1391 | 142:02 |
2017 | 3137 | 179:22 |
2018 | 1295 | 222:16 |
2019 | 3745 | 251:51 |
2020 | 3907 | 326:27 |
2021 | 5225 | 172:06 |
2022 | 0 | 72:35 |