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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 4 |
| 1967 | 23 |
| 1968 | 27 |
| 1969 | 51 |
| 1970 | 27 |
| 1971 | 30 |
| 1972 | 41 |
| 1973 | 19 |
| 1974 | 25 |
| 1975 | 19 |
| 1976 | 6 |
| 1977 | 9 |
| 1978 | 12 |
| 1979 | 10 |
| 1980 | 13 |
| 1981 | 8 |
| 1982 | 8 |
| 1983 | 10 |
| 1984 | 8 |
| 1985 | 14 |
| 1986 | 7 |
| 1987 | 12 |
| 1988 | 16 |
| 1989 | 17 |
| 1990 | 17 |
| 1991 | 153 |
| 1992 | 485 |
| 1993 | 799 |
| 1994 | 837 |
| 1995 | 854 |
| 1996 | 813 |
| 1997 | 852 |
| 1998 | 982 |
| 1999 | 1039 |
| 2000 | 975 |
| 2001 | 974 |
| 2002 | 967 |
| 2003 | 1062 |
| 2004 | 1104 |
| 2005 | 1310 |
| 2006 | 1328 |
| 2007 | 1410 |
| 2008 | 1442 |
| 2009 | 1622 |
| 2010 | 1576 |
| 2011 | 1677 |
| 2012 | 1830 |
| 2013 | 1781 |
| 2014 | 1769 |
| 2015 | 1725 |
| 2016 | 1599 |
| 2017 | 1521 |
| 2018 | 1426 |
| 2019 | 1358 |
| 2020 | 1522 |
| 2021 | 1502 |
| 2022 | 235 |
| 2023 | 64 |
| 2024 | 1555 |
| 2025 | 1120 |