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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1961 | 1 |
| 1964 | 1 |
| 1965 | 20 |
| 1966 | 34 |
| 1967 | 73 |
| 1968 | 88 |
| 1969 | 90 |
| 1970 | 109 |
| 1971 | 104 |
| 1972 | 128 |
| 1973 | 114 |
| 1974 | 139 |
| 1975 | 120 |
| 1976 | 115 |
| 1977 | 111 |
| 1978 | 140 |
| 1979 | 148 |
| 1980 | 167 |
| 1981 | 151 |
| 1982 | 143 |
| 1983 | 126 |
| 1984 | 138 |
| 1985 | 172 |
| 1986 | 162 |
| 1987 | 178 |
| 1988 | 141 |
| 1989 | 147 |
| 1990 | 117 |
| 1991 | 114 |
| 1992 | 125 |
| 1993 | 116 |
| 1994 | 125 |
| 1995 | 179 |
| 1996 | 199 |
| 1997 | 236 |
| 1998 | 187 |
| 1999 | 184 |
| 2000 | 250 |
| 2001 | 267 |
| 2002 | 308 |
| 2003 | 395 |
| 2004 | 355 |
| 2005 | 403 |
| 2006 | 446 |
| 2007 | 531 |
| 2008 | 456 |
| 2009 | 475 |
| 2010 | 476 |
| 2011 | 576 |
| 2012 | 584 |
| 2013 | 660 |
| 2014 | 584 |
| 2015 | 548 |
| 2016 | 489 |
| 2017 | 469 |
| 2018 | 457 |
| 2019 | 419 |
| 2020 | 346 |
| 2021 | 219 |
| 2022 | 301 |
| 2023 | 254 |
| 2024 | 94 |