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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1957 | 1 |
| 1965 | 9 |
| 1966 | 42 |
| 1967 | 64 |
| 1968 | 71 |
| 1969 | 70 |
| 1970 | 93 |
| 1971 | 116 |
| 1972 | 133 |
| 1973 | 207 |
| 1974 | 299 |
| 1975 | 492 |
| 1976 | 672 |
| 1977 | 636 |
| 1978 | 690 |
| 1979 | 842 |
| 1980 | 975 |
| 1981 | 1087 |
| 1982 | 1355 |
| 1983 | 1707 |
| 1984 | 1970 |
| 1985 | 2067 |
| 1986 | 2257 |
| 1987 | 2739 |
| 1988 | 2703 |
| 1989 | 3215 |
| 1990 | 3616 |
| 1991 | 3670 |
| 1992 | 3898 |
| 1993 | 4437 |
| 1994 | 5193 |
| 1995 | 5547 |
| 1996 | 5165 |
| 1997 | 4974 |
| 1998 | 5111 |
| 1999 | 5595 |
| 2000 | 5515 |
| 2001 | 5719 |
| 2002 | 6617 |
| 2003 | 7335 |
| 2004 | 8225 |
| 2005 | 8692 |
| 2006 | 7448 |
| 2007 | 6716 |
| 2008 | 7843 |
| 2009 | 8444 |
| 2010 | 9180 |
| 2011 | 10294 |
| 2012 | 10072 |
| 2013 | 9861 |
| 2014 | 8766 |
| 2015 | 8197 |
| 2016 | 7048 |
| 2017 | 6953 |
| 2018 | 6580 |
| 2019 | 6156 |
| 2020 | 4863 |
| 2021 | 3050 |
| 2022 | 1096 |
| 2023 | 1177 |
| 2024 | 5413 |
| 2025 | 1512 |