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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 1 |
| 1953 | 2 |
| 1957 | 1 |
| 1959 | 5 |
| 1960 | 2 |
| 1962 | 3 |
| 1964 | 2 |
| 1965 | 2 |
| 1966 | 3 |
| 1967 | 5 |
| 1968 | 6 |
| 1969 | 8 |
| 1970 | 10 |
| 1971 | 5 |
| 1972 | 9 |
| 1973 | 11 |
| 1974 | 5 |
| 1975 | 8 |
| 1976 | 10 |
| 1977 | 13 |
| 1978 | 10 |
| 1979 | 10 |
| 1980 | 11 |
| 1981 | 6 |
| 1982 | 14 |
| 1983 | 10 |
| 1984 | 12 |
| 1985 | 12 |
| 1986 | 17 |
| 1987 | 21 |
| 1988 | 24 |
| 1989 | 24 |
| 1990 | 26 |
| 1991 | 24 |
| 1992 | 31 |
| 1993 | 42 |
| 1994 | 54 |
| 1995 | 48 |
| 1996 | 71 |
| 1997 | 78 |
| 1998 | 77 |
| 1999 | 104 |
| 2000 | 125 |
| 2001 | 124 |
| 2002 | 119 |
| 2003 | 188 |
| 2004 | 250 |
| 2005 | 266 |
| 2006 | 274 |
| 2007 | 347 |
| 2008 | 328 |
| 2009 | 376 |
| 2010 | 413 |
| 2011 | 508 |
| 2012 | 547 |
| 2013 | 554 |
| 2014 | 530 |
| 2015 | 579 |
| 2016 | 553 |
| 2017 | 559 |
| 2018 | 506 |
| 2019 | 524 |
| 2020 | 589 |
| 2021 | 599 |
| 2022 | 483 |
| 2023 | 455 |
| 2024 | 442 |
| 2025 | 24 |