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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1952 | 1 |
| 1954 | 2 |
| 1957 | 4 |
| 1958 | 2 |
| 1959 | 1 |
| 1960 | 1 |
| 1961 | 2 |
| 1967 | 2 |
| 1968 | 1 |
| 1969 | 2 |
| 1970 | 1 |
| 1973 | 1 |
| 1977 | 2 |
| 1978 | 2 |
| 1979 | 2 |
| 1980 | 1 |
| 1981 | 1 |
| 1982 | 2 |
| 1984 | 1 |
| 2001 | 3 |
| 2002 | 1 |
| 2003 | 2 |
| 2004 | 2 |
| 2005 | 3 |
| 2006 | 4 |
| 2007 | 5 |
| 2008 | 7 |
| 2009 | 10 |
| 2010 | 7 |
| 2011 | 14 |
| 2012 | 18 |
| 2013 | 19 |
| 2014 | 26 |
| 2015 | 42 |
| 2016 | 45 |
| 2017 | 46 |
| 2018 | 67 |
| 2019 | 89 |
| 2020 | 41 |
| 2021 | 51 |
| 2022 | 50 |
| 2023 | 47 |