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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1950 | 2 |
| 1951 | 1 |
| 1952 | 17 |
| 1953 | 1 |
| 1956 | 4 |
| 1958 | 1 |
| 1960 | 2 |
| 1962 | 1 |
| 1965 | 2 |
| 1966 | 3 |
| 1967 | 2 |
| 1968 | 2 |
| 1970 | 1 |
| 1971 | 2 |
| 1972 | 1 |
| 1975 | 1 |
| 1981 | 2 |
| 1986 | 1 |
| 1988 | 2 |
| 1995 | 2 |
| 1998 | 1 |
| 1999 | 1 |
| 2001 | 1 |
| 2006 | 5 |
| 2007 | 1 |
| 2008 | 2 |
| 2011 | 1 |
| 2012 | 1 |
| 2013 | 3 |
| 2014 | 8 |
| 2015 | 4 |
| 2016 | 3 |
| 2017 | 13 |
| 2018 | 14 |
| 2019 | 10 |
| 2020 | 3 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 3 |
| 2025 | 1 |