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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 20 |
| 1968 | 14 |
| 1969 | 26 |
| 1970 | 24 |
| 1971 | 27 |
| 1972 | 43 |
| 1973 | 42 |
| 1974 | 43 |
| 1975 | 55 |
| 1976 | 40 |
| 1977 | 42 |
| 1978 | 53 |
| 1979 | 45 |
| 1980 | 53 |
| 1981 | 64 |
| 1982 | 34 |
| 1983 | 42 |
| 1984 | 55 |
| 1985 | 57 |
| 1986 | 56 |
| 1987 | 57 |
| 1988 | 66 |
| 1989 | 64 |
| 1990 | 70 |
| 1991 | 69 |
| 1992 | 66 |
| 1993 | 67 |
| 1994 | 69 |
| 1995 | 72 |
| 1996 | 81 |
| 1997 | 92 |
| 1998 | 86 |
| 1999 | 86 |
| 2000 | 123 |
| 2001 | 90 |
| 2002 | 131 |
| 2003 | 119 |
| 2004 | 151 |
| 2005 | 145 |
| 2006 | 201 |
| 2007 | 182 |
| 2008 | 184 |
| 2009 | 173 |
| 2010 | 150 |
| 2011 | 160 |
| 2012 | 148 |
| 2013 | 177 |
| 2014 | 108 |
| 2015 | 100 |
| 2016 | 121 |
| 2017 | 164 |
| 2018 | 123 |
| 2019 | 109 |
| 2020 | 151 |
| 2021 | 123 |
| 2022 | 111 |
| 2023 | 117 |
| 2024 | 85 |
| 2025 | 64 |