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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 1 |
| 1970 | 4 |
| 1973 | 1 |
| 1974 | 11 |
| 1975 | 66 |
| 1976 | 92 |
| 1977 | 67 |
| 1978 | 70 |
| 1979 | 91 |
| 1980 | 92 |
| 1981 | 93 |
| 1982 | 73 |
| 1983 | 89 |
| 1984 | 71 |
| 1985 | 98 |
| 1986 | 69 |
| 1987 | 61 |
| 1988 | 77 |
| 1989 | 77 |
| 1990 | 75 |
| 1991 | 72 |
| 1992 | 74 |
| 1993 | 74 |
| 1994 | 101 |
| 1995 | 86 |
| 1996 | 90 |
| 1997 | 128 |
| 1998 | 139 |
| 1999 | 148 |
| 2000 | 152 |
| 2001 | 125 |
| 2002 | 140 |
| 2003 | 159 |
| 2004 | 290 |
| 2005 | 307 |
| 2006 | 411 |
| 2007 | 454 |
| 2008 | 516 |
| 2009 | 634 |
| 2010 | 627 |
| 2011 | 722 |
| 2012 | 850 |
| 2013 | 953 |
| 2014 | 1002 |
| 2015 | 968 |
| 2016 | 952 |
| 2017 | 987 |
| 2018 | 1136 |
| 2019 | 1063 |
| 2020 | 765 |
| 2021 | 406 |
| 2022 | 182 |
| 2023 | 162 |
| 2024 | 611 |
| 2025 | 576 |