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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1955 | 1 |
| 1958 | 3 |
| 1959 | 1 |
| 1960 | 3 |
| 1961 | 3 |
| 1962 | 8 |
| 1963 | 3 |
| 1964 | 10 |
| 1965 | 6 |
| 1966 | 2 |
| 1967 | 5 |
| 1968 | 2 |
| 1969 | 6 |
| 1970 | 12 |
| 1971 | 10 |
| 1972 | 17 |
| 1973 | 12 |
| 1974 | 5 |
| 1975 | 18 |
| 1976 | 27 |
| 1977 | 27 |
| 1978 | 26 |
| 1979 | 24 |
| 1980 | 16 |
| 1981 | 27 |
| 1982 | 21 |
| 1983 | 26 |
| 1984 | 35 |
| 1985 | 29 |
| 1986 | 36 |
| 1987 | 54 |
| 1988 | 49 |
| 1989 | 68 |
| 1990 | 64 |
| 1991 | 74 |
| 1992 | 78 |
| 1993 | 108 |
| 1994 | 111 |
| 1995 | 143 |
| 1996 | 133 |
| 1997 | 197 |
| 1998 | 262 |
| 1999 | 278 |
| 2000 | 390 |
| 2001 | 491 |
| 2002 | 563 |
| 2003 | 722 |
| 2004 | 804 |
| 2005 | 996 |
| 2006 | 1172 |
| 2007 | 1430 |
| 2008 | 1587 |
| 2009 | 1838 |
| 2010 | 2220 |
| 2011 | 2641 |
| 2012 | 2913 |
| 2013 | 3062 |
| 2014 | 3282 |
| 2015 | 3497 |
| 2016 | 3529 |
| 2017 | 3598 |
| 2018 | 3669 |
| 2019 | 3699 |
| 2020 | 4075 |
| 2021 | 4486 |
| 2022 | 4327 |
| 2023 | 4036 |
| 2024 | 1455 |