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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1916 | 8 |
| 1917 | 25 |
| 1918 | 27 |
| 1919 | 25 |
| 1920 | 34 |
| 1921 | 20 |
| 1922 | 24 |
| 1923 | 38 |
| 1924 | 46 |
| 1925 | 41 |
| 1926 | 43 |
| 1927 | 47 |
| 1928 | 39 |
| 1929 | 48 |
| 1930 | 48 |
| 1931 | 53 |
| 1932 | 53 |
| 1933 | 50 |
| 1934 | 57 |
| 1935 | 53 |
| 1936 | 56 |
| 1937 | 50 |
| 1938 | 68 |
| 1939 | 54 |
| 1940 | 41 |
| 1941 | 38 |
| 1942 | 34 |
| 1943 | 18 |
| 1944 | 25 |
| 1945 | 27 |
| 1946 | 101 |
| 1947 | 40 |
| 1948 | 42 |
| 1949 | 116 |
| 1950 | 37 |
| 1951 | 44 |
| 1952 | 45 |
| 1953 | 43 |
| 1954 | 49 |
| 1955 | 55 |
| 1956 | 54 |
| 1957 | 49 |
| 1958 | 64 |
| 1959 | 60 |
| 1960 | 47 |
| 1961 | 60 |
| 1962 | 58 |
| 1963 | 93 |
| 1964 | 87 |
| 1965 | 87 |
| 1966 | 96 |
| 1967 | 102 |
| 1968 | 98 |
| 1969 | 229 |
| 1970 | 256 |
| 1971 | 222 |
| 1972 | 228 |
| 1973 | 178 |
| 1974 | 201 |
| 1975 | 113 |
| 1976 | 123 |
| 1977 | 150 |
| 1978 | 185 |
| 1979 | 167 |
| 1980 | 149 |
| 1981 | 111 |
| 1982 | 145 |
| 1983 | 146 |
| 1984 | 137 |
| 1985 | 139 |
| 1986 | 138 |
| 1987 | 155 |
| 1988 | 156 |
| 1989 | 164 |
| 1990 | 150 |
| 1991 | 149 |
| 1992 | 158 |
| 1993 | 143 |
| 1994 | 179 |
| 1995 | 181 |
| 1996 | 192 |
| 1997 | 155 |
| 1998 | 174 |
| 1999 | 161 |
| 2000 | 154 |
| 2001 | 178 |
| 2002 | 166 |
| 2003 | 128 |
| 2004 | 97 |
| 2005 | 122 |
| 2006 | 139 |
| 2007 | 166 |
| 2008 | 161 |
| 2009 | 171 |
| 2010 | 164 |
| 2011 | 153 |
| 2012 | 151 |
| 2013 | 167 |
| 2014 | 168 |
| 2015 | 179 |
| 2016 | 192 |
| 2017 | 191 |
| 2018 | 182 |
| 2019 | 223 |
| 2020 | 269 |
| 2021 | 292 |
| 2022 | 257 |
| 2023 | 220 |
| 2024 | 123 |