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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1961 | 1 |
| 1963 | 1 |
| 1964 | 3 |
| 1966 | 1 |
| 1973 | 3 |
| 1974 | 2 |
| 1976 | 3 |
| 1977 | 4 |
| 1978 | 4 |
| 1979 | 4 |
| 1980 | 14 |
| 1981 | 4 |
| 1982 | 11 |
| 1983 | 11 |
| 1984 | 22 |
| 1985 | 19 |
| 1986 | 16 |
| 1987 | 24 |
| 1988 | 22 |
| 1989 | 26 |
| 1990 | 41 |
| 1991 | 45 |
| 1992 | 49 |
| 1993 | 67 |
| 1994 | 91 |
| 1995 | 82 |
| 1996 | 115 |
| 1997 | 111 |
| 1998 | 120 |
| 1999 | 137 |
| 2000 | 170 |
| 2001 | 166 |
| 2002 | 255 |
| 2003 | 349 |
| 2004 | 407 |
| 2005 | 514 |
| 2006 | 592 |
| 2007 | 756 |
| 2008 | 877 |
| 2009 | 1007 |
| 2010 | 1178 |
| 2011 | 1468 |
| 2012 | 1694 |
| 2013 | 1971 |
| 2014 | 2319 |
| 2015 | 2690 |
| 2016 | 2834 |
| 2017 | 3278 |
| 2018 | 3611 |
| 2019 | 4228 |
| 2020 | 5285 |
| 2021 | 5822 |
| 2022 | 7004 |
| 2023 | 3222 |