ECU Libraries Catalog
- 1899 to 1899 1
- 1900 to 1909 9
- 1910 to 1919 14
- 1920 to 1929 91
- 1930 to 1939 142
- 1940 to 1949 145
- 1950 to 1959 196
- 1960 to 1969 585
- 1970 to 1979 851
- 1980 to 1989 1,998
- 1990 to 1999 3,153
- 2000 to 2009 4,764
- 2010 to 2019 2,966
- 2020 to 2024 1,952