ECU Libraries Catalog
- 1952 to 1954 4
- 1955 to 1959 1
- 1960 to 1964 1
- 1965 to 1969 0
- 1970 to 1974 5
- 1975 to 1979 22
- 1980 to 1984 25
- 1985 to 1989 49
- 1990 to 1994 47
- 1995 to 1999 61
- 2000 to 2004 81
- 2005 to 2009 59
- 2010 to 2014 14
- 2015 to 2019 19
- 2020 to 2023 9