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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 1 |
| 1960 | 3 |
| 1961 | 2 |
| 1967 | 1 |
| 1978 | 3 |
| 1979 | 4 |
| 1980 | 1 |
| 1981 | 4 |
| 1982 | 2 |
| 1983 | 2 |
| 1984 | 1 |
| 1985 | 3 |
| 1986 | 10 |
| 1987 | 4 |
| 1988 | 10 |
| 1989 | 14 |
| 1990 | 55 |
| 1991 | 81 |
| 1992 | 45 |
| 1993 | 62 |
| 1994 | 76 |
| 1995 | 77 |
| 1996 | 59 |
| 1997 | 113 |
| 1998 | 147 |
| 1999 | 175 |
| 2000 | 168 |
| 2001 | 206 |
| 2002 | 195 |
| 2003 | 195 |
| 2004 | 220 |
| 2005 | 256 |
| 2006 | 293 |
| 2007 | 407 |
| 2008 | 456 |
| 2009 | 482 |
| 2010 | 538 |
| 2011 | 593 |
| 2012 | 683 |
| 2013 | 706 |
| 2014 | 763 |
| 2015 | 886 |
| 2016 | 933 |
| 2017 | 871 |
| 2018 | 980 |
| 2019 | 1145 |
| 2020 | 827 |
| 2021 | 348 |
| 2022 | 158 |
| 2023 | 145 |
| 2024 | 62 |