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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 1 |
| 1964 | 1 |
| 1966 | 1 |
| 1968 | 1 |
| 1970 | 1 |
| 1979 | 4 |
| 1983 | 3 |
| 1984 | 2 |
| 1985 | 4 |
| 1986 | 2 |
| 1987 | 2 |
| 1988 | 4 |
| 1989 | 6 |
| 1990 | 6 |
| 1991 | 2 |
| 1992 | 1 |
| 1993 | 5 |
| 1994 | 5 |
| 1995 | 7 |
| 1996 | 5 |
| 1997 | 18 |
| 1998 | 23 |
| 1999 | 45 |
| 2000 | 56 |
| 2001 | 66 |
| 2002 | 100 |
| 2003 | 90 |
| 2004 | 100 |
| 2005 | 149 |
| 2006 | 142 |
| 2007 | 166 |
| 2008 | 209 |
| 2009 | 259 |
| 2010 | 326 |
| 2011 | 387 |
| 2012 | 317 |
| 2013 | 404 |
| 2014 | 449 |
| 2015 | 461 |
| 2016 | 450 |
| 2017 | 397 |
| 2018 | 447 |
| 2019 | 448 |
| 2020 | 524 |
| 2021 | 520 |
| 2022 | 471 |
| 2023 | 423 |
| 2024 | 370 |
| 2025 | 224 |