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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 1 |
| 1963 | 1 |
| 1964 | 1 |
| 1979 | 1 |
| 1981 | 3 |
| 1982 | 2 |
| 1983 | 2 |
| 1984 | 5 |
| 1986 | 4 |
| 1987 | 5 |
| 1988 | 7 |
| 1989 | 8 |
| 1990 | 17 |
| 1991 | 41 |
| 1992 | 52 |
| 1993 | 55 |
| 1994 | 70 |
| 1995 | 112 |
| 1996 | 66 |
| 1997 | 103 |
| 1998 | 116 |
| 1999 | 103 |
| 2000 | 147 |
| 2001 | 159 |
| 2002 | 116 |
| 2003 | 177 |
| 2004 | 154 |
| 2005 | 183 |
| 2006 | 194 |
| 2007 | 196 |
| 2008 | 192 |
| 2009 | 184 |
| 2010 | 197 |
| 2011 | 181 |
| 2012 | 191 |
| 2013 | 182 |
| 2014 | 172 |
| 2015 | 162 |
| 2016 | 155 |
| 2017 | 143 |
| 2018 | 110 |
| 2019 | 80 |
| 2020 | 57 |
| 2021 | 35 |
| 2022 | 15 |
| 2023 | 10 |
| 2024 | 9 |