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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1953 | 3 |
| 1954 | 4 |
| 1955 | 2 |
| 1956 | 5 |
| 1957 | 6 |
| 1958 | 18 |
| 1959 | 10 |
| 1960 | 16 |
| 1961 | 18 |
| 1962 | 8 |
| 1964 | 2 |
| 1965 | 22 |
| 1966 | 41 |
| 1967 | 62 |
| 1968 | 51 |
| 1969 | 66 |
| 1970 | 83 |
| 1971 | 94 |
| 1972 | 106 |
| 1973 | 104 |
| 1974 | 152 |
| 1975 | 135 |
| 1976 | 138 |
| 1977 | 175 |
| 1978 | 149 |
| 1979 | 192 |
| 1980 | 211 |
| 1981 | 233 |
| 1982 | 259 |
| 1983 | 297 |
| 1984 | 305 |
| 1985 | 364 |
| 1986 | 342 |
| 1987 | 326 |
| 1988 | 336 |
| 1989 | 409 |
| 1990 | 419 |
| 1991 | 422 |
| 1992 | 384 |
| 1993 | 350 |
| 1994 | 452 |
| 1995 | 449 |
| 1996 | 440 |
| 1997 | 477 |
| 1998 | 484 |
| 1999 | 479 |
| 2000 | 501 |
| 2001 | 538 |
| 2002 | 531 |
| 2003 | 522 |
| 2004 | 509 |
| 2005 | 631 |
| 2006 | 629 |
| 2007 | 652 |
| 2008 | 644 |
| 2009 | 642 |
| 2010 | 644 |
| 2011 | 720 |
| 2012 | 687 |
| 2013 | 711 |
| 2014 | 673 |
| 2015 | 657 |
| 2016 | 562 |
| 2017 | 541 |
| 2018 | 591 |
| 2019 | 528 |
| 2020 | 513 |
| 2021 | 442 |
| 2022 | 219 |
| 2023 | 156 |
| 2024 | 53 |