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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1953 | 1 |
| 1959 | 1 |
| 1961 | 4 |
| 1962 | 8 |
| 1963 | 4 |
| 1964 | 2 |
| 1966 | 2 |
| 1967 | 1 |
| 1968 | 3 |
| 1969 | 2 |
| 1970 | 3 |
| 1972 | 4 |
| 1973 | 5 |
| 1974 | 3 |
| 1975 | 3 |
| 1976 | 5 |
| 1977 | 7 |
| 1978 | 4 |
| 1979 | 7 |
| 1980 | 16 |
| 1981 | 8 |
| 1982 | 11 |
| 1983 | 5 |
| 1984 | 11 |
| 1985 | 8 |
| 1986 | 16 |
| 1987 | 19 |
| 1988 | 29 |
| 1989 | 22 |
| 1990 | 24 |
| 1991 | 30 |
| 1992 | 34 |
| 1993 | 42 |
| 1994 | 43 |
| 1995 | 49 |
| 1996 | 63 |
| 1997 | 42 |
| 1998 | 63 |
| 1999 | 70 |
| 2000 | 72 |
| 2001 | 80 |
| 2002 | 82 |
| 2003 | 120 |
| 2004 | 146 |
| 2005 | 171 |
| 2006 | 187 |
| 2007 | 222 |
| 2008 | 247 |
| 2009 | 287 |
| 2010 | 358 |
| 2011 | 398 |
| 2012 | 405 |
| 2013 | 423 |
| 2014 | 461 |
| 2015 | 428 |
| 2016 | 410 |
| 2017 | 391 |
| 2018 | 405 |
| 2019 | 435 |
| 2020 | 497 |
| 2021 | 557 |
| 2022 | 538 |
| 2023 | 487 |
| 2024 | 554 |
| 2025 | 521 |