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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1955 | 1 |
| 1959 | 1 |
| 1963 | 2 |
| 1964 | 52 |
| 1965 | 128 |
| 1966 | 120 |
| 1967 | 207 |
| 1968 | 419 |
| 1969 | 650 |
| 1970 | 678 |
| 1971 | 602 |
| 1972 | 450 |
| 1973 | 431 |
| 1974 | 392 |
| 1975 | 336 |
| 1976 | 325 |
| 1977 | 353 |
| 1978 | 292 |
| 1979 | 354 |
| 1980 | 366 |
| 1981 | 420 |
| 1982 | 393 |
| 1983 | 368 |
| 1984 | 471 |
| 1985 | 446 |
| 1986 | 374 |
| 1987 | 453 |
| 1988 | 615 |
| 1989 | 670 |
| 1990 | 653 |
| 1991 | 673 |
| 1992 | 827 |
| 1993 | 888 |
| 1994 | 938 |
| 1995 | 1505 |
| 1996 | 2553 |
| 1997 | 2325 |
| 1998 | 2798 |
| 1999 | 2531 |
| 2000 | 2780 |
| 2001 | 3048 |
| 2002 | 3030 |
| 2003 | 3297 |
| 2004 | 3486 |
| 2005 | 3902 |
| 2006 | 3729 |
| 2007 | 3903 |
| 2008 | 4081 |
| 2009 | 4456 |
| 2010 | 4333 |
| 2011 | 4556 |
| 2012 | 4577 |
| 2013 | 4460 |
| 2014 | 4501 |
| 2015 | 4284 |
| 2016 | 4103 |
| 2017 | 3872 |
| 2018 | 3725 |
| 2019 | 3679 |
| 2020 | 3705 |
| 2021 | 3049 |
| 2022 | 2117 |
| 2023 | 2074 |
| 2024 | 781 |