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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1960 | 1 |
| 1966 | 1 |
| 1973 | 1 |
| 1974 | 1 |
| 1975 | 7 |
| 1976 | 6 |
| 1977 | 35 |
| 1978 | 171 |
| 1979 | 229 |
| 1980 | 241 |
| 1981 | 279 |
| 1982 | 303 |
| 1983 | 336 |
| 1984 | 408 |
| 1985 | 420 |
| 1986 | 375 |
| 1987 | 472 |
| 1988 | 687 |
| 1989 | 847 |
| 1990 | 942 |
| 1991 | 929 |
| 1992 | 964 |
| 1993 | 1043 |
| 1994 | 949 |
| 1995 | 1144 |
| 1996 | 1012 |
| 1997 | 903 |
| 1998 | 766 |
| 1999 | 988 |
| 2000 | 1073 |
| 2001 | 1054 |
| 2002 | 1177 |
| 2003 | 1580 |
| 2004 | 1642 |
| 2005 | 1522 |
| 2006 | 2020 |
| 2007 | 2701 |
| 2008 | 3172 |
| 2009 | 4148 |
| 2010 | 4163 |
| 2011 | 4299 |
| 2012 | 4527 |
| 2013 | 4009 |
| 2014 | 3771 |
| 2015 | 3613 |
| 2016 | 2871 |
| 2017 | 2900 |
| 2018 | 2764 |
| 2019 | 2389 |
| 2020 | 2179 |
| 2021 | 1619 |
| 2022 | 1147 |
| 2023 | 932 |
| 2024 | 1473 |
| 2025 | 1059 |