ECU Libraries Catalog
- 1953 to 1954 1
- 1955 to 1959 3
- 1960 to 1964 1
- 1965 to 1969 1
- 1970 to 1974 7
- 1975 to 1979 6
- 1980 to 1984 4
- 1985 to 1989 20
- 1990 to 1994 74
- 1995 to 1999 145
- 2000 to 2004 161
- 2005 to 2009 231
- 2010 to 2014 312
- 2015 to 2019 251
- 2020 to 2023 108