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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1916 | 44 |
| 1917 | 44 |
| 1918 | 49 |
| 1919 | 37 |
| 1920 | 45 |
| 1921 | 38 |
| 1922 | 42 |
| 1923 | 42 |
| 1924 | 46 |
| 1925 | 31 |
| 1926 | 64 |
| 1927 | 56 |
| 1928 | 64 |
| 1929 | 53 |
| 1930 | 61 |
| 1931 | 65 |
| 1932 | 69 |
| 1933 | 82 |
| 1934 | 88 |
| 1935 | 100 |
| 1936 | 111 |
| 1937 | 105 |
| 1938 | 97 |
| 1939 | 97 |
| 1940 | 109 |
| 1941 | 97 |
| 1942 | 126 |
| 1943 | 130 |
| 1944 | 145 |
| 1945 | 249 |
| 1946 | 516 |
| 1947 | 581 |
| 1948 | 294 |
| 1949 | 265 |
| 1950 | 190 |
| 1951 | 208 |
| 1952 | 226 |
| 1953 | 275 |
| 1954 | 272 |
| 1955 | 276 |
| 1956 | 293 |
| 1957 | 298 |
| 1958 | 246 |
| 1959 | 297 |
| 1960 | 307 |
| 1961 | 326 |
| 1962 | 476 |
| 1963 | 510 |
| 1964 | 556 |
| 1965 | 569 |
| 1966 | 689 |
| 1967 | 644 |
| 1968 | 708 |
| 1969 | 835 |
| 1970 | 609 |
| 1971 | 666 |
| 1972 | 679 |
| 1973 | 750 |
| 1974 | 684 |
| 1975 | 722 |
| 1976 | 661 |
| 1977 | 709 |
| 1978 | 690 |
| 1979 | 685 |
| 1980 | 744 |
| 1981 | 645 |
| 1982 | 775 |
| 1983 | 827 |
| 1984 | 759 |
| 1985 | 832 |
| 1986 | 752 |
| 1987 | 917 |
| 1988 | 915 |
| 1989 | 992 |
| 1990 | 1013 |
| 1991 | 1104 |
| 1992 | 1123 |
| 1993 | 1064 |
| 1994 | 1044 |
| 1995 | 1064 |
| 1996 | 1066 |
| 1997 | 1103 |
| 1998 | 975 |
| 1999 | 1056 |
| 2000 | 998 |
| 2001 | 920 |
| 2002 | 869 |
| 2003 | 879 |
| 2004 | 1004 |
| 2005 | 984 |
| 2006 | 1233 |
| 2007 | 1274 |
| 2008 | 1134 |
| 2009 | 972 |
| 2010 | 923 |
| 2011 | 1174 |
| 2012 | 1353 |
| 2013 | 686 |
| 2014 | 524 |
| 2015 | 456 |
| 2016 | 366 |
| 2017 | 293 |
| 2018 | 314 |
| 2019 | 313 |
| 2020 | 272 |
| 2021 | 274 |
| 2022 | 256 |
| 2023 | 169 |
| 2024 | 78 |