ECU Libraries Catalog
- 1945 to 1949 0
- 1950 to 1954 0
- 1955 to 1959 0
- 1960 to 1964 0
- 1965 to 1969 0
- 1970 to 1974 0
- 1975 to 1979 0
- 1980 to 1984 0
- 1985 to 1989 4
- 1990 to 1994 10
- 1995 to 1999 24
- 2000 to 2004 38
- 2005 to 2009 55
- 2010 to 2014 46
- 2015 to 2017 20