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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1952 | 1 |
| 1954 | 7 |
| 1955 | 4 |
| 1956 | 1 |
| 1957 | 1 |
| 1958 | 1 |
| 1959 | 7 |
| 1960 | 4 |
| 1961 | 6 |
| 1962 | 22 |
| 1963 | 36 |
| 1964 | 88 |
| 1965 | 94 |
| 1966 | 123 |
| 1967 | 165 |
| 1968 | 201 |
| 1969 | 210 |
| 1970 | 242 |
| 1971 | 257 |
| 1972 | 288 |
| 1973 | 349 |
| 1974 | 391 |
| 1975 | 392 |
| 1976 | 393 |
| 1977 | 460 |
| 1978 | 457 |
| 1979 | 550 |
| 1980 | 522 |
| 1981 | 502 |
| 1982 | 535 |
| 1983 | 588 |
| 1984 | 538 |
| 1985 | 618 |
| 1986 | 577 |
| 1987 | 520 |
| 1988 | 519 |
| 1989 | 573 |
| 1990 | 589 |
| 1991 | 536 |
| 1992 | 533 |
| 1993 | 535 |
| 1994 | 539 |
| 1995 | 531 |
| 1996 | 539 |
| 1997 | 547 |
| 1998 | 555 |
| 1999 | 567 |
| 2000 | 595 |
| 2001 | 580 |
| 2002 | 574 |
| 2003 | 603 |
| 2004 | 510 |
| 2005 | 485 |
| 2006 | 464 |
| 2007 | 464 |
| 2008 | 447 |
| 2009 | 438 |
| 2010 | 463 |
| 2011 | 440 |
| 2012 | 458 |
| 2013 | 462 |
| 2014 | 453 |
| 2015 | 432 |
| 2016 | 430 |
| 2017 | 406 |
| 2018 | 385 |
| 2019 | 319 |
| 2020 | 346 |
| 2021 | 281 |
| 2022 | 312 |
| 2023 | 162 |
| 2024 | 161 |