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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1956 | 17 |
| 1957 | 50 |
| 1958 | 57 |
| 1959 | 65 |
| 1960 | 41 |
| 1961 | 45 |
| 1962 | 40 |
| 1963 | 15 |
| 1964 | 17 |
| 1965 | 95 |
| 1966 | 177 |
| 1967 | 199 |
| 1968 | 218 |
| 1969 | 240 |
| 1970 | 246 |
| 1971 | 244 |
| 1972 | 262 |
| 1973 | 283 |
| 1974 | 357 |
| 1975 | 241 |
| 1976 | 253 |
| 1977 | 281 |
| 1978 | 314 |
| 1979 | 324 |
| 1980 | 280 |
| 1981 | 282 |
| 1982 | 315 |
| 1983 | 335 |
| 1984 | 375 |
| 1985 | 381 |
| 1986 | 405 |
| 1987 | 414 |
| 1988 | 462 |
| 1989 | 438 |
| 1990 | 533 |
| 1991 | 513 |
| 1992 | 555 |
| 1993 | 549 |
| 1994 | 586 |
| 1995 | 531 |
| 1996 | 529 |
| 1997 | 503 |
| 1998 | 491 |
| 1999 | 497 |
| 2000 | 554 |
| 2001 | 592 |
| 2002 | 581 |
| 2003 | 659 |
| 2004 | 605 |
| 2005 | 650 |
| 2006 | 711 |
| 2007 | 677 |
| 2008 | 736 |
| 2009 | 631 |
| 2010 | 666 |
| 2011 | 728 |
| 2012 | 695 |
| 2013 | 657 |
| 2014 | 703 |
| 2015 | 648 |
| 2016 | 612 |
| 2017 | 613 |
| 2018 | 638 |
| 2019 | 615 |
| 2020 | 523 |
| 2021 | 357 |
| 2022 | 143 |
| 2023 | 122 |
| 2024 | 345 |
| 2025 | 368 |