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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1960 | 1 |
| 1961 | 1 |
| 1962 | 2 |
| 1963 | 2 |
| 1964 | 2 |
| 1965 | 2 |
| 1966 | 5 |
| 1967 | 5 |
| 1968 | 5 |
| 1969 | 3 |
| 1970 | 3 |
| 1971 | 6 |
| 1972 | 2 |
| 1973 | 3 |
| 1974 | 4 |
| 1975 | 4 |
| 1976 | 8 |
| 1977 | 8 |
| 1978 | 10 |
| 1979 | 12 |
| 1980 | 11 |
| 1981 | 9 |
| 1982 | 9 |
| 1983 | 9 |
| 1984 | 22 |
| 1985 | 17 |
| 1986 | 15 |
| 1987 | 22 |
| 1988 | 41 |
| 1989 | 42 |
| 1990 | 49 |
| 1991 | 71 |
| 1992 | 64 |
| 1993 | 94 |
| 1994 | 117 |
| 1995 | 129 |
| 1996 | 171 |
| 1997 | 172 |
| 1998 | 242 |
| 1999 | 253 |
| 2000 | 357 |
| 2001 | 437 |
| 2002 | 536 |
| 2003 | 665 |
| 2004 | 777 |
| 2005 | 974 |
| 2006 | 1128 |
| 2007 | 1304 |
| 2008 | 1531 |
| 2009 | 1659 |
| 2010 | 1958 |
| 2011 | 2217 |
| 2012 | 2535 |
| 2013 | 2834 |
| 2014 | 3012 |
| 2015 | 3095 |
| 2016 | 3285 |
| 2017 | 3379 |
| 2018 | 3474 |
| 2019 | 3638 |
| 2020 | 4052 |
| 2021 | 4217 |
| 2022 | 4063 |
| 2023 | 3868 |
| 2024 | 3989 |
| 2025 | 4238 |
| 2026 | 1083 |
| 2027 | 1 |