Accession year
- 1901 to 19094,790 objects
- 1910 to 19191,881 objects
- 1920 to 19293,136 objects
- 1930 to 19393,955 objects
- 1940 to 19493,861 objects
- 1950 to 19594,744 objects
- 1960 to 19691,555 objects
- 1970 to 1979541 objects
- 1980 to 1989289 objects
- 1990 to 1994111 objects