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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1917 | 1 |
| 1918 | 1 |
| 1919 | 1 |
| 1927 | 1 |
| 1928 | 1 |
| 1933 | 1 |
| 1934 | 1 |
| 1937 | 1 |
| 1939 | 1 |
| 1940 | 4 |
| 1941 | 4 |
| 1942 | 1 |
| 1943 | 4 |
| 1945 | 4 |
| 1946 | 7 |
| 1947 | 13 |
| 1948 | 26 |
| 1949 | 32 |
| 1950 | 30 |
| 1951 | 26 |
| 1952 | 25 |
| 1953 | 33 |
| 1954 | 34 |
| 1955 | 23 |
| 1956 | 38 |
| 1957 | 43 |
| 1958 | 62 |
| 1959 | 109 |
| 1960 | 87 |
| 1961 | 57 |
| 1962 | 131 |
| 1963 | 159 |
| 1964 | 142 |
| 1965 | 132 |
| 1966 | 99 |
| 1967 | 95 |
| 1968 | 107 |
| 1969 | 107 |
| 1970 | 119 |
| 1971 | 145 |
| 1972 | 179 |
| 1973 | 173 |
| 1974 | 236 |
| 1975 | 206 |
| 1976 | 243 |
| 1977 | 237 |
| 1978 | 267 |
| 1979 | 380 |
| 1980 | 499 |
| 1981 | 567 |
| 1982 | 628 |
| 1983 | 773 |
| 1984 | 862 |
| 1985 | 1155 |
| 1986 | 1242 |
| 1987 | 1388 |
| 1988 | 1600 |
| 1989 | 1757 |
| 1990 | 1916 |
| 1991 | 2334 |
| 1992 | 2686 |
| 1993 | 3157 |
| 1994 | 3702 |
| 1995 | 4009 |
| 1996 | 4551 |
| 1997 | 4997 |
| 1998 | 5385 |
| 1999 | 6097 |
| 2000 | 7086 |
| 2001 | 8111 |
| 2002 | 9643 |
| 2003 | 11524 |
| 2004 | 14120 |
| 2005 | 17750 |
| 2006 | 21009 |
| 2007 | 23560 |
| 2008 | 28301 |
| 2009 | 32259 |
| 2010 | 37955 |
| 2011 | 44167 |
| 2012 | 51163 |
| 2013 | 59960 |
| 2014 | 68842 |
| 2015 | 77389 |
| 2016 | 81592 |
| 2017 | 89383 |
| 2018 | 102564 |
| 2019 | 118214 |
| 2020 | 138771 |
| 2021 | 158137 |
| 2022 | 185723 |
| 2023 | 182791 |
| 2024 | 206425 |
| 2025 | 238621 |
| 2026 | 157346 |
| 2027 | 17 |
| 2028 | 1 |