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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1928 | 1 |
| 1943 | 1 |
| 1945 | 1 |
| 1947 | 2 |
| 1951 | 2 |
| 1952 | 2 |
| 1954 | 1 |
| 1957 | 1 |
| 1958 | 1 |
| 1960 | 1 |
| 1961 | 1 |
| 1964 | 1 |
| 1975 | 1 |
| 1976 | 1 |
| 1978 | 2 |
| 1979 | 1 |
| 1981 | 2 |
| 1992 | 1 |
| 2002 | 3 |
| 2003 | 4 |
| 2004 | 4 |
| 2005 | 3 |
| 2006 | 1 |
| 2007 | 4 |
| 2008 | 6 |
| 2009 | 6 |
| 2010 | 8 |
| 2011 | 9 |
| 2012 | 7 |
| 2013 | 15 |
| 2014 | 9 |
| 2015 | 16 |
| 2016 | 7 |
| 2017 | 13 |
| 2018 | 15 |
| 2019 | 8 |
| 2020 | 20 |
| 2021 | 21 |
| 2022 | 21 |
| 2023 | 5 |