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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1970 | 2 |
| 1974 | 1 |
| 1975 | 1 |
| 1976 | 2 |
| 1977 | 1 |
| 1978 | 2 |
| 1979 | 1 |
| 1980 | 11 |
| 1981 | 33 |
| 1982 | 56 |
| 1983 | 75 |
| 1984 | 52 |
| 1985 | 60 |
| 1986 | 55 |
| 1987 | 80 |
| 1988 | 56 |
| 1989 | 58 |
| 1990 | 76 |
| 1991 | 99 |
| 1992 | 104 |
| 1993 | 98 |
| 1994 | 108 |
| 1995 | 159 |
| 1996 | 110 |
| 1997 | 86 |
| 1998 | 113 |
| 1999 | 117 |
| 2000 | 134 |
| 2001 | 109 |
| 2002 | 129 |
| 2003 | 116 |
| 2004 | 136 |
| 2005 | 147 |
| 2006 | 140 |
| 2007 | 154 |
| 2008 | 115 |
| 2009 | 116 |
| 2010 | 175 |
| 2011 | 177 |
| 2012 | 172 |
| 2013 | 193 |
| 2014 | 173 |
| 2015 | 184 |
| 2016 | 176 |
| 2017 | 154 |
| 2018 | 144 |
| 2019 | 165 |
| 2020 | 162 |
| 2021 | 183 |
| 2022 | 184 |
| 2023 | 163 |
| 2024 | 131 |
| 2025 | 63 |