CV-HELIOS NETWORK
NUMBER OF CV-OBSERVATIONS PER YEAR
Year Obs.
Total
1981 88
1982 376
1983 220
1984 269
1985 362
1986 518
1987 1447
1988 1716
1989 1728
1990 931
1991 1566
1992 1814
1993 1721
1994 2956
1995 3277
1996 3822
1997 4176
1998 5651
1999 6351
2000 6308
2001 6542
2002 6248
2003 8021
2004 7427
2005 7019
2006 7481
2007 8480
2008 9166
2009 9352
2010 8073
2011 6643
2012 6241
2013 5590
2014 5822
2015 5861
2016 6104
2017 5899
2018 7573
2019 8132
2020 8953
2021 4989
2022
2023
2024
2025