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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1978 | 10 |
| 1979 | 17 |
| 1980 | 9 |
| 1981 | 10 |
| 1982 | 26 |
| 1983 | 26 |
| 1984 | 19 |
| 1985 | 13 |
| 1986 | 10 |
| 1987 | 15 |
| 1988 | 2 |
| 1989 | 2 |
| 1999 | 21 |
| 2001 | 1 |
| 2003 | 14 |
| 2004 | 1 |
| 2006 | 24 |
| 2007 | 52 |
| 2008 | 76 |
| 2009 | 104 |
| 2010 | 105 |
| 2011 | 75 |
| 2012 | 109 |
| 2013 | 91 |
| 2014 | 115 |
| 2015 | 128 |
| 2016 | 168 |
| 2017 | 177 |
| 2018 | 162 |
| 2019 | 149 |
| 2020 | 114 |
| 2021 | 100 |
| 2022 | 151 |
| 2023 | 164 |
| 2024 | 106 |
| 2025 | 136 |