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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 2 |
| 1967 | 3 |
| 1968 | 14 |
| 1969 | 57 |
| 1970 | 144 |
| 1971 | 179 |
| 1972 | 241 |
| 1973 | 225 |
| 1974 | 208 |
| 1975 | 221 |
| 1976 | 285 |
| 1977 | 201 |
| 1978 | 274 |
| 1979 | 289 |
| 1980 | 327 |
| 1981 | 329 |
| 1982 | 447 |
| 1983 | 421 |
| 1984 | 437 |
| 1985 | 520 |
| 1986 | 523 |
| 1987 | 442 |
| 1988 | 395 |
| 1989 | 387 |
| 1990 | 433 |
| 1991 | 393 |
| 1992 | 437 |
| 1993 | 318 |
| 1994 | 301 |
| 1995 | 440 |
| 1996 | 554 |
| 1997 | 623 |
| 1998 | 598 |
| 1999 | 720 |
| 2000 | 751 |
| 2001 | 807 |
| 2002 | 806 |
| 2003 | 922 |
| 2004 | 884 |
| 2005 | 906 |
| 2006 | 942 |
| 2007 | 982 |
| 2008 | 904 |
| 2009 | 863 |
| 2010 | 957 |
| 2011 | 858 |
| 2012 | 822 |
| 2013 | 876 |
| 2014 | 924 |
| 2015 | 802 |
| 2016 | 751 |
| 2017 | 659 |
| 2018 | 679 |
| 2019 | 620 |
| 2020 | 561 |
| 2021 | 426 |
| 2022 | 364 |
| 2023 | 293 |
| 2024 | 97 |