ECU Libraries Catalog
- 1947 to 1949 1
- 1950 to 1954 0
- 1955 to 1959 0
- 1960 to 1964 0
- 1965 to 1969 0
- 1970 to 1974 2
- 1975 to 1979 3
- 1980 to 1984 8
- 1985 to 1989 48
- 1990 to 1994 221
- 1995 to 1999 125
- 2000 to 2004 150
- 2005 to 2009 78
- 2010 to 2014 69
- 2015 to 2019 5