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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1969 | 1 |
| 1970 | 8 |
| 1971 | 15 |
| 1972 | 21 |
| 1973 | 31 |
| 1974 | 36 |
| 1975 | 31 |
| 1976 | 25 |
| 1977 | 23 |
| 1978 | 13 |
| 1979 | 20 |
| 1980 | 10 |
| 1981 | 18 |
| 1982 | 12 |
| 1983 | 15 |
| 1984 | 26 |
| 1985 | 28 |
| 1986 | 25 |
| 1987 | 22 |
| 1988 | 36 |
| 1989 | 44 |
| 1990 | 70 |
| 1991 | 89 |
| 1992 | 152 |
| 1993 | 153 |
| 1994 | 168 |
| 1995 | 214 |
| 1996 | 236 |
| 1997 | 203 |
| 1998 | 205 |
| 1999 | 190 |
| 2000 | 176 |
| 2001 | 183 |
| 2002 | 181 |
| 2003 | 189 |
| 2004 | 185 |
| 2005 | 163 |
| 2006 | 172 |
| 2007 | 155 |
| 2008 | 150 |
| 2009 | 156 |
| 2010 | 178 |
| 2011 | 160 |
| 2012 | 175 |
| 2013 | 172 |
| 2014 | 151 |
| 2015 | 161 |
| 2016 | 132 |
| 2017 | 152 |
| 2018 | 130 |
| 2019 | 141 |
| 2020 | 131 |
| 2021 | 112 |
| 2022 | 16 |
| 2023 | 14 |
| 2024 | 144 |
| 2025 | 86 |