ECU Libraries Catalog
- 1855 to 1859 10,541
- 1860 to 1869 21,525
- 1870 to 1879 15,194
- 1880 to 1889 14,850
- 1890 to 1899 18,498
- 1900 to 1909 27,072
- 1910 to 1919 32,875
- 1920 to 1929 45,088
- 1930 to 1939 34,493
- 1940 to 1949 27,552
- 1950 to 1959 52,578
- 1960 to 1969 109,384
- 1970 to 1978 156,163