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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 3 |
| 1968 | 7 |
| 1969 | 13 |
| 1970 | 5 |
| 1971 | 14 |
| 1972 | 16 |
| 1973 | 27 |
| 1974 | 27 |
| 1975 | 48 |
| 1976 | 34 |
| 1977 | 38 |
| 1978 | 39 |
| 1979 | 46 |
| 1980 | 43 |
| 1981 | 46 |
| 1982 | 57 |
| 1983 | 92 |
| 1984 | 97 |
| 1985 | 102 |
| 1986 | 101 |
| 1987 | 121 |
| 1988 | 144 |
| 1989 | 135 |
| 1990 | 132 |
| 1991 | 155 |
| 1992 | 173 |
| 1993 | 151 |
| 1994 | 150 |
| 1995 | 150 |
| 1996 | 134 |
| 1997 | 128 |
| 1998 | 151 |
| 1999 | 146 |
| 2000 | 149 |
| 2001 | 138 |
| 2002 | 153 |
| 2003 | 121 |
| 2004 | 133 |
| 2005 | 160 |
| 2006 | 202 |
| 2007 | 201 |
| 2008 | 157 |
| 2009 | 151 |
| 2010 | 179 |
| 2011 | 175 |
| 2012 | 171 |
| 2013 | 180 |
| 2014 | 175 |
| 2015 | 161 |
| 2016 | 156 |
| 2017 | 146 |
| 2018 | 158 |
| 2019 | 142 |
| 2020 | 118 |
| 2021 | 111 |
| 2022 | 93 |
| 2023 | 78 |
| 2024 | 107 |
| 2025 | 106 |
| 2026 | 21 |