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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1956 | 3 |
| 1958 | 1 |
| 1964 | 1 |
| 1978 | 1 |
| 1980 | 3 |
| 1981 | 4 |
| 1982 | 19 |
| 1983 | 20 |
| 1984 | 22 |
| 1985 | 22 |
| 1986 | 20 |
| 1987 | 10 |
| 1988 | 14 |
| 1989 | 31 |
| 1990 | 25 |
| 1991 | 34 |
| 1992 | 48 |
| 1993 | 42 |
| 1994 | 29 |
| 1995 | 32 |
| 1996 | 37 |
| 1997 | 80 |
| 1998 | 66 |
| 1999 | 87 |
| 2000 | 59 |
| 2001 | 48 |
| 2002 | 53 |
| 2003 | 43 |
| 2004 | 56 |
| 2005 | 79 |
| 2006 | 100 |
| 2007 | 100 |
| 2008 | 102 |
| 2009 | 91 |
| 2010 | 93 |
| 2011 | 114 |
| 2012 | 124 |
| 2013 | 107 |
| 2014 | 146 |
| 2015 | 152 |
| 2016 | 172 |
| 2017 | 182 |
| 2018 | 198 |
| 2019 | 209 |
| 2020 | 213 |
| 2021 | 195 |
| 2022 | 167 |
| 2023 | 144 |
| 2024 | 65 |