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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 2 |
| 1964 | 1 |
| 1965 | 1 |
| 1966 | 3 |
| 1967 | 3 |
| 1968 | 2 |
| 1969 | 4 |
| 1970 | 7 |
| 1971 | 4 |
| 1972 | 2 |
| 1973 | 1 |
| 1974 | 15 |
| 1975 | 11 |
| 1976 | 11 |
| 1977 | 34 |
| 1978 | 85 |
| 1979 | 92 |
| 1980 | 1847 |
| 1981 | 4178 |
| 1982 | 4286 |
| 1983 | 4571 |
| 1984 | 4530 |
| 1985 | 4699 |
| 1986 | 4866 |
| 1987 | 5181 |
| 1988 | 5274 |
| 1989 | 5384 |
| 1990 | 5387 |
| 1991 | 5485 |
| 1992 | 5387 |
| 1993 | 5327 |
| 1994 | 5489 |
| 1995 | 5508 |
| 1996 | 5307 |
| 1997 | 5397 |
| 1998 | 5132 |
| 1999 | 5424 |
| 2000 | 5657 |
| 2001 | 6023 |
| 2002 | 6383 |
| 2003 | 6744 |
| 2004 | 7290 |
| 2005 | 7917 |
| 2006 | 8359 |
| 2007 | 8913 |
| 2008 | 9945 |
| 2009 | 10385 |
| 2010 | 11539 |
| 2011 | 12248 |
| 2012 | 12768 |
| 2013 | 13266 |
| 2014 | 13511 |
| 2015 | 13407 |
| 2016 | 12903 |
| 2017 | 12463 |
| 2018 | 12525 |
| 2019 | 12905 |
| 2020 | 14385 |
| 2021 | 15105 |
| 2022 | 13720 |
| 2023 | 13481 |
| 2024 | 7136 |
| 2025 | 2 |