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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1968 | 3 |
| 1969 | 1 |
| 1970 | 1 |
| 1972 | 2 |
| 1973 | 5 |
| 1974 | 7 |
| 1976 | 2 |
| 1977 | 5 |
| 1978 | 4 |
| 1979 | 11 |
| 1980 | 16 |
| 1981 | 30 |
| 1982 | 19 |
| 1983 | 26 |
| 1984 | 30 |
| 1985 | 48 |
| 1986 | 51 |
| 1987 | 53 |
| 1988 | 43 |
| 1989 | 61 |
| 1990 | 79 |
| 1991 | 96 |
| 1992 | 90 |
| 1993 | 109 |
| 1994 | 159 |
| 1995 | 130 |
| 1996 | 167 |
| 1997 | 173 |
| 1998 | 229 |
| 1999 | 259 |
| 2000 | 259 |
| 2001 | 313 |
| 2002 | 386 |
| 2003 | 471 |
| 2004 | 602 |
| 2005 | 769 |
| 2006 | 906 |
| 2007 | 965 |
| 2008 | 1184 |
| 2009 | 1439 |
| 2010 | 1772 |
| 2011 | 2131 |
| 2012 | 2598 |
| 2013 | 2912 |
| 2014 | 3443 |
| 2015 | 3946 |
| 2016 | 4165 |
| 2017 | 4497 |
| 2018 | 5174 |
| 2019 | 6096 |
| 2020 | 7063 |
| 2021 | 8223 |
| 2022 | 9535 |
| 2023 | 9437 |
| 2024 | 5010 |
| 2025 | 2 |