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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 5 |
| 1960 | 3 |
| 1961 | 2 |
| 1962 | 1 |
| 1966 | 2 |
| 1967 | 12 |
| 1968 | 27 |
| 1969 | 46 |
| 1970 | 23 |
| 1971 | 16 |
| 1972 | 17 |
| 1973 | 18 |
| 1974 | 20 |
| 1975 | 21 |
| 1976 | 29 |
| 1977 | 35 |
| 1978 | 64 |
| 1979 | 85 |
| 1980 | 68 |
| 1981 | 57 |
| 1982 | 70 |
| 1983 | 78 |
| 1984 | 125 |
| 1985 | 178 |
| 1986 | 156 |
| 1987 | 172 |
| 1988 | 270 |
| 1989 | 325 |
| 1990 | 430 |
| 1991 | 603 |
| 1992 | 644 |
| 1993 | 741 |
| 1994 | 814 |
| 1995 | 878 |
| 1996 | 869 |
| 1997 | 1135 |
| 1998 | 1484 |
| 1999 | 1667 |
| 2000 | 1547 |
| 2001 | 1915 |
| 2002 | 2081 |
| 2003 | 2254 |
| 2004 | 2368 |
| 2005 | 2521 |
| 2006 | 2953 |
| 2007 | 3322 |
| 2008 | 3600 |
| 2009 | 3694 |
| 2010 | 4023 |
| 2011 | 4587 |
| 2012 | 5523 |
| 2013 | 5652 |
| 2014 | 6087 |
| 2015 | 6597 |
| 2016 | 6361 |
| 2017 | 6838 |
| 2018 | 7705 |
| 2019 | 8154 |
| 2020 | 6813 |
| 2021 | 3609 |
| 2022 | 605 |
| 2023 | 726 |
| 2024 | 5429 |
| 2025 | 6623 |