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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1957 | 1 |
| 1961 | 1 |
| 1978 | 8 |
| 1979 | 6 |
| 1980 | 3 |
| 1982 | 4 |
| 1983 | 6 |
| 1984 | 7 |
| 1985 | 8 |
| 1986 | 9 |
| 1987 | 15 |
| 1988 | 7 |
| 1989 | 4 |
| 1990 | 9 |
| 1991 | 16 |
| 1992 | 24 |
| 1993 | 20 |
| 1994 | 23 |
| 1995 | 19 |
| 1996 | 14 |
| 1997 | 24 |
| 1998 | 23 |
| 1999 | 26 |
| 2000 | 35 |
| 2001 | 44 |
| 2002 | 54 |
| 2003 | 67 |
| 2004 | 64 |
| 2005 | 73 |
| 2006 | 93 |
| 2007 | 87 |
| 2008 | 100 |
| 2009 | 135 |
| 2010 | 173 |
| 2011 | 174 |
| 2012 | 169 |
| 2013 | 186 |
| 2014 | 216 |
| 2015 | 237 |
| 2016 | 233 |
| 2017 | 220 |
| 2018 | 193 |
| 2019 | 221 |
| 2020 | 230 |
| 2021 | 255 |
| 2022 | 231 |
| 2023 | 246 |
| 2024 | 243 |
| 2025 | 201 |