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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 1 |
| 1966 | 13 |
| 1967 | 15 |
| 1968 | 12 |
| 1969 | 2 |
| 1970 | 13 |
| 1971 | 3 |
| 1972 | 5 |
| 1973 | 2 |
| 1974 | 7 |
| 1975 | 9 |
| 1976 | 26 |
| 1977 | 42 |
| 1978 | 77 |
| 1979 | 104 |
| 1980 | 3196 |
| 1981 | 6817 |
| 1982 | 6772 |
| 1983 | 6918 |
| 1984 | 7074 |
| 1985 | 7114 |
| 1986 | 7264 |
| 1987 | 7492 |
| 1988 | 7343 |
| 1989 | 7670 |
| 1990 | 7731 |
| 1991 | 7859 |
| 1992 | 7793 |
| 1993 | 7876 |
| 1994 | 8211 |
| 1995 | 8160 |
| 1996 | 8104 |
| 1997 | 8096 |
| 1998 | 8325 |
| 1999 | 8703 |
| 2000 | 9072 |
| 2001 | 9745 |
| 2002 | 10178 |
| 2003 | 10925 |
| 2004 | 11725 |
| 2005 | 12801 |
| 2006 | 13804 |
| 2007 | 15240 |
| 2008 | 17688 |
| 2009 | 19157 |
| 2010 | 21510 |
| 2011 | 23345 |
| 2012 | 25101 |
| 2013 | 27077 |
| 2014 | 27650 |
| 2015 | 27991 |
| 2016 | 27858 |
| 2017 | 25864 |
| 2018 | 25621 |
| 2019 | 25614 |
| 2020 | 27632 |
| 2021 | 28088 |
| 2022 | 25469 |
| 2023 | 24842 |
| 2024 | 15356 |
| 2025 | 7 |