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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1953 | 7 |
| 1954 | 5 |
| 1955 | 6 |
| 1956 | 10 |
| 1957 | 14 |
| 1958 | 7 |
| 1959 | 6 |
| 1960 | 5 |
| 1961 | 7 |
| 1962 | 5 |
| 1977 | 13 |
| 1978 | 32 |
| 1979 | 41 |
| 1980 | 46 |
| 1981 | 47 |
| 1982 | 38 |
| 1983 | 44 |
| 1984 | 36 |
| 1985 | 34 |
| 1986 | 33 |
| 1987 | 30 |
| 1988 | 43 |
| 1989 | 36 |
| 1990 | 49 |
| 1991 | 40 |
| 1992 | 41 |
| 1993 | 48 |
| 1994 | 44 |
| 1995 | 52 |
| 1996 | 51 |
| 1997 | 61 |
| 1998 | 67 |
| 1999 | 71 |
| 2000 | 78 |
| 2001 | 97 |
| 2002 | 96 |
| 2003 | 99 |
| 2004 | 126 |
| 2005 | 160 |
| 2006 | 228 |
| 2007 | 268 |
| 2008 | 284 |
| 2009 | 278 |
| 2010 | 298 |
| 2011 | 391 |
| 2012 | 416 |
| 2013 | 477 |
| 2014 | 511 |
| 2015 | 591 |
| 2016 | 529 |
| 2017 | 490 |
| 2018 | 524 |
| 2019 | 478 |
| 2020 | 364 |
| 2021 | 158 |
| 2022 | 91 |
| 2023 | 96 |
| 2024 | 91 |