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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1961 | 1 |
| 1964 | 1 |
| 1965 | 2 |
| 1966 | 3 |
| 1972 | 3 |
| 1974 | 15 |
| 1975 | 16 |
| 1976 | 13 |
| 1977 | 10 |
| 1978 | 15 |
| 1979 | 24 |
| 1980 | 19 |
| 1981 | 17 |
| 1982 | 19 |
| 1983 | 18 |
| 1984 | 20 |
| 1985 | 16 |
| 1986 | 8 |
| 1987 | 15 |
| 1988 | 30 |
| 1989 | 204 |
| 1990 | 512 |
| 1991 | 563 |
| 1992 | 586 |
| 1993 | 727 |
| 1994 | 606 |
| 1995 | 700 |
| 1996 | 736 |
| 1997 | 805 |
| 1998 | 844 |
| 1999 | 972 |
| 2000 | 936 |
| 2001 | 1274 |
| 2002 | 1339 |
| 2003 | 1359 |
| 2004 | 1479 |
| 2005 | 1534 |
| 2006 | 1625 |
| 2007 | 1680 |
| 2008 | 1805 |
| 2009 | 1876 |
| 2010 | 1888 |
| 2011 | 1917 |
| 2012 | 2093 |
| 2013 | 2150 |
| 2014 | 2085 |
| 2015 | 2202 |
| 2016 | 2006 |
| 2017 | 1655 |
| 2018 | 1619 |
| 2019 | 1564 |
| 2020 | 1782 |
| 2021 | 1733 |
| 2022 | 1516 |
| 2023 | 1226 |
| 2024 | 1743 |
| 2025 | 1055 |