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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 1 |
| 1971 | 2 |
| 1973 | 1 |
| 1974 | 1 |
| 1975 | 4 |
| 1976 | 6 |
| 1977 | 1 |
| 1978 | 1 |
| 1979 | 1 |
| 1980 | 7 |
| 1981 | 3 |
| 1982 | 3 |
| 1983 | 7 |
| 1984 | 3 |
| 1985 | 6 |
| 1986 | 12 |
| 1987 | 9 |
| 1988 | 15 |
| 1989 | 19 |
| 1990 | 21 |
| 1991 | 18 |
| 1992 | 27 |
| 1993 | 44 |
| 1994 | 45 |
| 1995 | 75 |
| 1996 | 64 |
| 1997 | 83 |
| 1998 | 117 |
| 1999 | 145 |
| 2000 | 216 |
| 2001 | 286 |
| 2002 | 335 |
| 2003 | 465 |
| 2004 | 584 |
| 2005 | 730 |
| 2006 | 842 |
| 2007 | 956 |
| 2008 | 1111 |
| 2009 | 1319 |
| 2010 | 1689 |
| 2011 | 2070 |
| 2012 | 2284 |
| 2013 | 2485 |
| 2014 | 2857 |
| 2015 | 3123 |
| 2016 | 3212 |
| 2017 | 3411 |
| 2018 | 3666 |
| 2019 | 3619 |
| 2020 | 3879 |
| 2021 | 4379 |
| 2022 | 4178 |
| 2023 | 4111 |
| 2024 | 4362 |
| 2025 | 2197 |