ECU Libraries Catalog
- 1873 to 1879 1
- 1880 to 1889 3
- 1890 to 1899 0
- 1900 to 1909 0
- 1910 to 1919 0
- 1920 to 1929 1
- 1930 to 1939 4
- 1940 to 1949 2
- 1950 to 1959 8
- 1960 to 1969 21
- 1970 to 1979 89
- 1980 to 1989 99
- 1990 to 1999 83
- 2000 to 2009 58
- 2010 to 2019 215
- 2020 to 2020 29