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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 1 |
| 1965 | 46 |
| 1966 | 76 |
| 1967 | 71 |
| 1968 | 117 |
| 1969 | 104 |
| 1970 | 108 |
| 1971 | 171 |
| 1972 | 140 |
| 1973 | 131 |
| 1974 | 120 |
| 1975 | 114 |
| 1976 | 112 |
| 1977 | 97 |
| 1978 | 100 |
| 1979 | 103 |
| 1980 | 78 |
| 1981 | 124 |
| 1982 | 104 |
| 1983 | 106 |
| 1984 | 132 |
| 1985 | 132 |
| 1986 | 144 |
| 1987 | 131 |
| 1988 | 142 |
| 1989 | 147 |
| 1990 | 198 |
| 1991 | 194 |
| 1992 | 215 |
| 1993 | 256 |
| 1994 | 251 |
| 1995 | 333 |
| 1996 | 412 |
| 1997 | 422 |
| 1998 | 420 |
| 1999 | 454 |
| 2000 | 444 |
| 2001 | 394 |
| 2002 | 448 |
| 2003 | 484 |
| 2004 | 509 |
| 2005 | 589 |
| 2006 | 599 |
| 2007 | 579 |
| 2008 | 544 |
| 2009 | 596 |
| 2010 | 546 |
| 2011 | 552 |
| 2012 | 541 |
| 2013 | 577 |
| 2014 | 642 |
| 2015 | 640 |
| 2016 | 634 |
| 2017 | 606 |
| 2018 | 529 |
| 2019 | 529 |
| 2020 | 494 |
| 2021 | 405 |
| 2022 | 287 |
| 2023 | 238 |
| 2024 | 263 |