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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 1 |
| 1967 | 2 |
| 1968 | 3 |
| 1969 | 7 |
| 1970 | 10 |
| 1971 | 7 |
| 1972 | 17 |
| 1973 | 12 |
| 1974 | 24 |
| 1975 | 39 |
| 1976 | 54 |
| 1977 | 59 |
| 1978 | 94 |
| 1979 | 120 |
| 1980 | 134 |
| 1981 | 138 |
| 1982 | 174 |
| 1983 | 205 |
| 1984 | 210 |
| 1985 | 229 |
| 1986 | 235 |
| 1987 | 181 |
| 1988 | 179 |
| 1989 | 164 |
| 1990 | 158 |
| 1991 | 176 |
| 1992 | 157 |
| 1993 | 158 |
| 1994 | 159 |
| 1995 | 142 |
| 1996 | 156 |
| 1997 | 167 |
| 1998 | 162 |
| 1999 | 142 |
| 2000 | 185 |
| 2001 | 187 |
| 2002 | 156 |
| 2003 | 144 |
| 2004 | 176 |
| 2005 | 182 |
| 2006 | 235 |
| 2007 | 232 |
| 2008 | 247 |
| 2009 | 270 |
| 2010 | 250 |
| 2011 | 251 |
| 2012 | 304 |
| 2013 | 325 |
| 2014 | 322 |
| 2015 | 343 |
| 2016 | 309 |
| 2017 | 316 |
| 2018 | 327 |
| 2019 | 318 |
| 2020 | 302 |
| 2021 | 288 |
| 2022 | 47 |
| 2023 | 7 |
| 2024 | 38 |