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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 6 |
| 1967 | 11 |
| 1968 | 8 |
| 1969 | 16 |
| 1970 | 34 |
| 1971 | 22 |
| 1972 | 28 |
| 1973 | 38 |
| 1974 | 31 |
| 1975 | 52 |
| 1976 | 39 |
| 1977 | 73 |
| 1978 | 89 |
| 1979 | 91 |
| 1980 | 113 |
| 1981 | 131 |
| 1982 | 218 |
| 1983 | 205 |
| 1984 | 225 |
| 1985 | 227 |
| 1986 | 231 |
| 1987 | 236 |
| 1988 | 199 |
| 1989 | 236 |
| 1990 | 200 |
| 1991 | 183 |
| 1992 | 159 |
| 1993 | 150 |
| 1994 | 131 |
| 1995 | 123 |
| 1996 | 129 |
| 1997 | 111 |
| 1998 | 86 |
| 1999 | 80 |
| 2000 | 79 |
| 2001 | 78 |
| 2002 | 67 |
| 2003 | 79 |
| 2004 | 61 |
| 2005 | 64 |
| 2006 | 77 |
| 2007 | 62 |
| 2008 | 63 |
| 2009 | 69 |
| 2010 | 62 |
| 2011 | 45 |
| 2012 | 55 |
| 2013 | 48 |
| 2014 | 45 |
| 2015 | 41 |
| 2016 | 45 |
| 2017 | 25 |
| 2018 | 37 |
| 2019 | 35 |
| 2020 | 32 |
| 2021 | 35 |
| 2022 | 24 |
| 2023 | 30 |
| 2024 | 29 |
| 2025 | 26 |
| 2026 | 11 |