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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1954 | 1 |
| 1955 | 1 |
| 1956 | 7 |
| 1957 | 9 |
| 1958 | 15 |
| 1959 | 25 |
| 1960 | 41 |
| 1961 | 47 |
| 1962 | 68 |
| 1963 | 98 |
| 1964 | 112 |
| 1965 | 65 |
| 1966 | 8 |
| 1967 | 6 |
| 1968 | 6 |
| 1970 | 1 |
| 1971 | 2 |
| 1972 | 2 |
| 1973 | 3 |
| 1974 | 20 |
| 1975 | 21 |
| 1976 | 46 |
| 1977 | 714 |
| 1978 | 1308 |
| 1979 | 1358 |
| 1980 | 1444 |
| 1981 | 1558 |
| 1982 | 1857 |
| 1983 | 2024 |
| 1984 | 1969 |
| 1985 | 2099 |
| 1986 | 2322 |
| 1987 | 2413 |
| 1988 | 2395 |
| 1989 | 2844 |
| 1990 | 3047 |
| 1991 | 2996 |
| 1992 | 3070 |
| 1993 | 3343 |
| 1994 | 3478 |
| 1995 | 3680 |
| 1996 | 3607 |
| 1997 | 3760 |
| 1998 | 3873 |
| 1999 | 4104 |
| 2000 | 4053 |
| 2001 | 4005 |
| 2002 | 4297 |
| 2003 | 4374 |
| 2004 | 4671 |
| 2005 | 4958 |
| 2006 | 5081 |
| 2007 | 5446 |
| 2008 | 5282 |
| 2009 | 5474 |
| 2010 | 5637 |
| 2011 | 6031 |
| 2012 | 6270 |
| 2013 | 6614 |
| 2014 | 6786 |
| 2015 | 6822 |
| 2016 | 6724 |
| 2017 | 6985 |
| 2018 | 7098 |
| 2019 | 7104 |
| 2020 | 6998 |
| 2021 | 5927 |
| 2022 | 4287 |
| 2023 | 3694 |
| 2024 | 3643 |