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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 2 |
| 1967 | 2 |
| 1968 | 1 |
| 1969 | 2 |
| 1971 | 2 |
| 1973 | 1 |
| 1974 | 9 |
| 1975 | 14 |
| 1976 | 17 |
| 1977 | 9 |
| 1978 | 15 |
| 1979 | 25 |
| 1980 | 43 |
| 1981 | 78 |
| 1982 | 31 |
| 1983 | 59 |
| 1984 | 41 |
| 1985 | 26 |
| 1986 | 32 |
| 1987 | 41 |
| 1988 | 64 |
| 1989 | 54 |
| 1990 | 18 |
| 1991 | 18 |
| 1992 | 25 |
| 1993 | 16 |
| 1994 | 16 |
| 1995 | 12 |
| 1996 | 27 |
| 1997 | 46 |
| 1998 | 145 |
| 1999 | 175 |
| 2000 | 186 |
| 2001 | 167 |
| 2002 | 126 |
| 2003 | 181 |
| 2004 | 201 |
| 2005 | 493 |
| 2006 | 510 |
| 2007 | 693 |
| 2008 | 903 |
| 2009 | 1040 |
| 2010 | 1093 |
| 2011 | 1124 |
| 2012 | 1162 |
| 2013 | 1339 |
| 2014 | 1412 |
| 2015 | 1511 |
| 2016 | 1644 |
| 2017 | 1636 |
| 2018 | 1744 |
| 2019 | 1798 |
| 2020 | 1425 |
| 2021 | 640 |
| 2022 | 133 |
| 2023 | 283 |
| 2024 | 1503 |
| 2025 | 1186 |