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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1957 | 1 |
| 1958 | 1 |
| 1959 | 8 |
| 1960 | 3 |
| 1961 | 2 |
| 1963 | 2 |
| 1964 | 1 |
| 1965 | 3 |
| 1991 | 1 |
| 1993 | 1 |
| 1998 | 1 |
| 1999 | 1 |
| 2002 | 1 |
| 2003 | 1 |
| 2004 | 7 |
| 2005 | 9 |
| 2006 | 11 |
| 2007 | 13 |
| 2008 | 45 |
| 2009 | 41 |
| 2010 | 59 |
| 2011 | 55 |
| 2012 | 55 |
| 2013 | 44 |
| 2014 | 53 |
| 2015 | 52 |
| 2016 | 39 |
| 2017 | 31 |
| 2018 | 41 |
| 2019 | 32 |
| 2020 | 38 |
| 2021 | 44 |
| 2022 | 44 |
| 2023 | 35 |
| 2024 | 40 |
| 2025 | 26 |