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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 1 |
| 1964 | 1 |
| 1965 | 20 |
| 1966 | 61 |
| 1967 | 56 |
| 1968 | 66 |
| 1969 | 60 |
| 1970 | 75 |
| 1971 | 108 |
| 1972 | 114 |
| 1973 | 137 |
| 1974 | 196 |
| 1975 | 188 |
| 1976 | 222 |
| 1977 | 245 |
| 1978 | 246 |
| 1979 | 268 |
| 1980 | 276 |
| 1981 | 251 |
| 1982 | 289 |
| 1983 | 308 |
| 1984 | 308 |
| 1985 | 299 |
| 1986 | 337 |
| 1987 | 338 |
| 1988 | 366 |
| 1989 | 427 |
| 1990 | 453 |
| 1991 | 426 |
| 1992 | 519 |
| 1993 | 496 |
| 1994 | 497 |
| 1995 | 513 |
| 1996 | 496 |
| 1997 | 491 |
| 1998 | 477 |
| 1999 | 451 |
| 2000 | 578 |
| 2001 | 551 |
| 2002 | 558 |
| 2003 | 584 |
| 2004 | 629 |
| 2005 | 621 |
| 2006 | 707 |
| 2007 | 788 |
| 2008 | 812 |
| 2009 | 816 |
| 2010 | 723 |
| 2011 | 665 |
| 2012 | 601 |
| 2013 | 642 |
| 2014 | 611 |
| 2015 | 591 |
| 2016 | 542 |
| 2017 | 530 |
| 2018 | 535 |
| 2019 | 520 |
| 2020 | 402 |
| 2021 | 309 |
| 2022 | 162 |
| 2023 | 145 |
| 2024 | 51 |