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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1955 | 1 |
| 1956 | 2 |
| 1957 | 6 |
| 1958 | 8 |
| 1959 | 17 |
| 1960 | 17 |
| 1961 | 23 |
| 1962 | 10 |
| 1963 | 1 |
| 1965 | 38 |
| 1966 | 53 |
| 1967 | 74 |
| 1968 | 78 |
| 1969 | 106 |
| 1970 | 114 |
| 1971 | 174 |
| 1972 | 179 |
| 1973 | 205 |
| 1974 | 206 |
| 1975 | 298 |
| 1976 | 221 |
| 1977 | 274 |
| 1978 | 295 |
| 1979 | 354 |
| 1980 | 299 |
| 1981 | 310 |
| 1982 | 407 |
| 1983 | 396 |
| 1984 | 406 |
| 1985 | 391 |
| 1986 | 377 |
| 1987 | 415 |
| 1988 | 432 |
| 1989 | 443 |
| 1990 | 449 |
| 1991 | 389 |
| 1992 | 455 |
| 1993 | 404 |
| 1994 | 425 |
| 1995 | 356 |
| 1996 | 373 |
| 1997 | 402 |
| 1998 | 415 |
| 1999 | 364 |
| 2000 | 358 |
| 2001 | 374 |
| 2002 | 428 |
| 2003 | 443 |
| 2004 | 480 |
| 2005 | 521 |
| 2006 | 516 |
| 2007 | 522 |
| 2008 | 562 |
| 2009 | 599 |
| 2010 | 636 |
| 2011 | 683 |
| 2012 | 679 |
| 2013 | 615 |
| 2014 | 606 |
| 2015 | 643 |
| 2016 | 614 |
| 2017 | 563 |
| 2018 | 573 |
| 2019 | 589 |
| 2020 | 476 |
| 2021 | 395 |
| 2022 | 59 |
| 2023 | 11 |
| 2024 | 70 |