ECU Libraries Catalog
- 1953 to 1954 1
- 1955 to 1959 1
- 1960 to 1964 0
- 1965 to 1969 0
- 1970 to 1974 3
- 1975 to 1979 5
- 1980 to 1984 6
- 1985 to 1989 18
- 1990 to 1994 53
- 1995 to 1999 83
- 2000 to 2004 186
- 2005 to 2009 234
- 2010 to 2014 473
- 2015 to 2019 397
- 2020 to 2024 121