ECU Libraries Catalog
- 1900 to 1909 2
- 1910 to 1919 25
- 1920 to 1929 130
- 1930 to 1939 167
- 1940 to 1949 154
- 1950 to 1959 231
- 1960 to 1969 625
- 1970 to 1979 1,101
- 1980 to 1989 2,681
- 1990 to 1999 3,941
- 2000 to 2009 4,032
- 2010 to 2019 1,036
- 2020 to 2022 120