ECU Libraries Catalog
- 1884 to 1889 1
- 1890 to 1899 1
- 1900 to 1909 0
- 1910 to 1919 0
- 1920 to 1929 0
- 1930 to 1939 0
- 1940 to 1949 0
- 1950 to 1959 0
- 1960 to 1969 1
- 1970 to 1979 2
- 1980 to 1989 37
- 1990 to 1999 223
- 2000 to 2009 1,231
- 2010 to 2019 2,054
- 2020 to 2024 202