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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1968 | 1 |
| 1970 | 1 |
| 1972 | 1 |
| 1973 | 1 |
| 1974 | 1 |
| 1978 | 1 |
| 1980 | 1 |
| 1981 | 1 |
| 1984 | 1 |
| 1985 | 1 |
| 1986 | 1 |
| 1987 | 1 |
| 1988 | 1 |
| 1992 | 1 |
| 1994 | 5 |
| 2003 | 2 |
| 2004 | 1 |
| 2005 | 5 |
| 2006 | 6 |
| 2007 | 6 |
| 2008 | 6 |
| 2009 | 8 |
| 2010 | 9 |
| 2011 | 20 |
| 2012 | 24 |
| 2013 | 18 |
| 2014 | 21 |
| 2015 | 35 |
| 2016 | 28 |
| 2017 | 23 |
| 2018 | 43 |
| 2019 | 37 |
| 2020 | 68 |
| 2021 | 72 |
| 2022 | 66 |
| 2023 | 66 |
| 2024 | 58 |
| 2025 | 28 |