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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1965 | 2 |
| 1967 | 4 |
| 1968 | 17 |
| 1969 | 42 |
| 1970 | 44 |
| 1971 | 44 |
| 1972 | 30 |
| 1973 | 22 |
| 1974 | 22 |
| 1975 | 15 |
| 1976 | 12 |
| 1977 | 13 |
| 1978 | 18 |
| 1979 | 26 |
| 1980 | 27 |
| 1981 | 27 |
| 1982 | 22 |
| 1983 | 34 |
| 1984 | 28 |
| 1985 | 30 |
| 1986 | 26 |
| 1987 | 51 |
| 1988 | 62 |
| 1989 | 59 |
| 1990 | 58 |
| 1991 | 60 |
| 1992 | 105 |
| 1993 | 70 |
| 1994 | 94 |
| 1995 | 222 |
| 1996 | 427 |
| 1997 | 403 |
| 1998 | 496 |
| 1999 | 375 |
| 2000 | 437 |
| 2001 | 557 |
| 2002 | 546 |
| 2003 | 645 |
| 2004 | 754 |
| 2005 | 809 |
| 2006 | 876 |
| 2007 | 823 |
| 2008 | 872 |
| 2009 | 845 |
| 2010 | 890 |
| 2011 | 978 |
| 2012 | 987 |
| 2013 | 928 |
| 2014 | 966 |
| 2015 | 884 |
| 2016 | 822 |
| 2017 | 789 |
| 2018 | 786 |
| 2019 | 809 |
| 2020 | 730 |
| 2021 | 405 |
| 2022 | 35 |
| 2023 | 15 |
| 2024 | 65 |