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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 1 |
| 1961 | 1 |
| 1962 | 9 |
| 1963 | 1 |
| 1965 | 2 |
| 1966 | 1 |
| 1968 | 3 |
| 1970 | 2 |
| 1971 | 6 |
| 1972 | 4 |
| 1973 | 2 |
| 1974 | 6 |
| 1975 | 4 |
| 1976 | 3 |
| 1977 | 5 |
| 1978 | 6 |
| 1979 | 9 |
| 1980 | 4 |
| 1981 | 5 |
| 1982 | 6 |
| 1983 | 6 |
| 1984 | 4 |
| 1985 | 6 |
| 1986 | 26 |
| 1987 | 19 |
| 1988 | 13 |
| 1989 | 17 |
| 1990 | 23 |
| 1991 | 17 |
| 1992 | 19 |
| 1993 | 25 |
| 1994 | 42 |
| 1995 | 45 |
| 1996 | 45 |
| 1997 | 47 |
| 1998 | 41 |
| 1999 | 62 |
| 2000 | 93 |
| 2001 | 117 |
| 2002 | 133 |
| 2003 | 172 |
| 2004 | 203 |
| 2005 | 243 |
| 2006 | 281 |
| 2007 | 312 |
| 2008 | 351 |
| 2009 | 463 |
| 2010 | 547 |
| 2011 | 659 |
| 2012 | 723 |
| 2013 | 775 |
| 2014 | 756 |
| 2015 | 777 |
| 2016 | 829 |
| 2017 | 851 |
| 2018 | 888 |
| 2019 | 861 |
| 2020 | 965 |
| 2021 | 995 |
| 2022 | 848 |
| 2023 | 85 |