ECU Libraries Catalog
- 1897 to 1899 2
- 1900 to 1909 5
- 1910 to 1919 33
- 1920 to 1929 185
- 1930 to 1939 318
- 1940 to 1949 291
- 1950 to 1959 500
- 1960 to 1969 1,434
- 1970 to 1979 2,245
- 1980 to 1989 6,824
- 1990 to 1999 9,860
- 2000 to 2009 10,952
- 2010 to 2019 3,413
- 2020 to 2024 624