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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1965 | 1 |
| 1966 | 5 |
| 1967 | 7 |
| 1968 | 8 |
| 1969 | 6 |
| 1970 | 14 |
| 1971 | 10 |
| 1972 | 8 |
| 1973 | 15 |
| 1974 | 20 |
| 1975 | 17 |
| 1976 | 27 |
| 1977 | 25 |
| 1978 | 18 |
| 1979 | 34 |
| 1980 | 56 |
| 1981 | 39 |
| 1982 | 73 |
| 1983 | 107 |
| 1984 | 146 |
| 1985 | 137 |
| 1986 | 189 |
| 1987 | 165 |
| 1988 | 158 |
| 1989 | 233 |
| 1990 | 273 |
| 1991 | 252 |
| 1992 | 283 |
| 1993 | 348 |
| 1994 | 344 |
| 1995 | 341 |
| 1996 | 414 |
| 1997 | 364 |
| 1998 | 405 |
| 1999 | 431 |
| 2000 | 461 |
| 2001 | 467 |
| 2002 | 470 |
| 2003 | 424 |
| 2004 | 431 |
| 2005 | 451 |
| 2006 | 477 |
| 2007 | 553 |
| 2008 | 526 |
| 2009 | 521 |
| 2010 | 518 |
| 2011 | 498 |
| 2012 | 518 |
| 2013 | 490 |
| 2014 | 475 |
| 2015 | 577 |
| 2016 | 505 |
| 2017 | 447 |
| 2018 | 438 |
| 2019 | 357 |
| 2020 | 331 |
| 2021 | 255 |
| 2022 | 23 |
| 2023 | 8 |
| 2024 | 28 |