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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1965 | 1 |
| 1970 | 5 |
| 1971 | 16 |
| 1972 | 15 |
| 1973 | 20 |
| 1974 | 17 |
| 1975 | 19 |
| 1976 | 18 |
| 1977 | 26 |
| 1978 | 97 |
| 1979 | 69 |
| 1980 | 1287 |
| 1981 | 2922 |
| 1982 | 3088 |
| 1983 | 2987 |
| 1984 | 3275 |
| 1985 | 3316 |
| 1986 | 3591 |
| 1987 | 3716 |
| 1988 | 3650 |
| 1989 | 3678 |
| 1990 | 3738 |
| 1991 | 3602 |
| 1992 | 3348 |
| 1993 | 3188 |
| 1994 | 3036 |
| 1995 | 2841 |
| 1996 | 2778 |
| 1997 | 2855 |
| 1998 | 2857 |
| 1999 | 3035 |
| 2000 | 3145 |
| 2001 | 3800 |
| 2002 | 4064 |
| 2003 | 4671 |
| 2004 | 5537 |
| 2005 | 6661 |
| 2006 | 7786 |
| 2007 | 8827 |
| 2008 | 10241 |
| 2009 | 11176 |
| 2010 | 12978 |
| 2011 | 15095 |
| 2012 | 15754 |
| 2013 | 13658 |
| 2014 | 10882 |
| 2015 | 8637 |
| 2016 | 6456 |
| 2017 | 4886 |
| 2018 | 4335 |
| 2019 | 3591 |
| 2020 | 3338 |
| 2021 | 2863 |
| 2022 | 2140 |
| 2023 | 1848 |
| 2024 | 1084 |
| 2025 | 2 |