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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1949 | 1 |
| 1951 | 1 |
| 1952 | 2 |
| 1954 | 1 |
| 1958 | 1 |
| 1962 | 3 |
| 1964 | 1 |
| 1965 | 1 |
| 1966 | 3 |
| 1967 | 3 |
| 1968 | 3 |
| 1969 | 4 |
| 1970 | 4 |
| 1971 | 1 |
| 1972 | 3 |
| 1974 | 1 |
| 1980 | 1 |
| 1996 | 3 |
| 1997 | 2 |
| 2001 | 4 |
| 2003 | 1 |
| 2008 | 10 |
| 2009 | 11 |
| 2010 | 12 |
| 2011 | 15 |
| 2012 | 6 |
| 2013 | 8 |
| 2014 | 9 |
| 2015 | 11 |
| 2016 | 7 |
| 2017 | 7 |
| 2018 | 7 |
| 2019 | 12 |
| 2020 | 16 |
| 2021 | 23 |
| 2022 | 16 |
| 2023 | 19 |
| 2024 | 15 |
| 2025 | 20 |
| 2026 | 1 |