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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 1 |
| 1966 | 11 |
| 1967 | 11 |
| 1968 | 11 |
| 1969 | 2 |
| 1970 | 9 |
| 1971 | 2 |
| 1972 | 5 |
| 1973 | 2 |
| 1974 | 5 |
| 1975 | 8 |
| 1976 | 21 |
| 1977 | 33 |
| 1978 | 62 |
| 1979 | 70 |
| 1980 | 2401 |
| 1981 | 5118 |
| 1982 | 5119 |
| 1983 | 5215 |
| 1984 | 5249 |
| 1985 | 5288 |
| 1986 | 5426 |
| 1987 | 5577 |
| 1988 | 5438 |
| 1989 | 5796 |
| 1990 | 5841 |
| 1991 | 5859 |
| 1992 | 5835 |
| 1993 | 5875 |
| 1994 | 6194 |
| 1995 | 6173 |
| 1996 | 6083 |
| 1997 | 6080 |
| 1998 | 6220 |
| 1999 | 6505 |
| 2000 | 6856 |
| 2001 | 7304 |
| 2002 | 7674 |
| 2003 | 8184 |
| 2004 | 8799 |
| 2005 | 9602 |
| 2006 | 10324 |
| 2007 | 11387 |
| 2008 | 13232 |
| 2009 | 14458 |
| 2010 | 16248 |
| 2011 | 17643 |
| 2012 | 18910 |
| 2013 | 20296 |
| 2014 | 20700 |
| 2015 | 21050 |
| 2016 | 20934 |
| 2017 | 19465 |
| 2018 | 19279 |
| 2019 | 19247 |
| 2020 | 20723 |
| 2021 | 21085 |
| 2022 | 19033 |
| 2023 | 18502 |
| 2024 | 10003 |
| 2025 | 1 |