ECU Libraries Catalog
- 1892 to 1899 3
- 1900 to 1909 11
- 1910 to 1919 44
- 1920 to 1929 217
- 1930 to 1939 345
- 1940 to 1949 346
- 1950 to 1959 566
- 1960 to 1969 1,469
- 1970 to 1979 2,344
- 1980 to 1989 7,063
- 1990 to 1999 10,212
- 2000 to 2009 11,974
- 2010 to 2019 4,131
- 2020 to 2024 2,373