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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1949 | 1 |
| 1953 | 1 |
| 1954 | 1 |
| 1955 | 2 |
| 1960 | 1 |
| 1961 | 1 |
| 1962 | 3 |
| 1963 | 7 |
| 1964 | 13 |
| 1965 | 1 |
| 1967 | 1 |
| 1972 | 2 |
| 1973 | 1 |
| 1974 | 1 |
| 1976 | 2 |
| 1977 | 1 |
| 1980 | 1 |
| 1983 | 1 |
| 1984 | 2 |
| 1985 | 1 |
| 1986 | 2 |
| 1987 | 1 |
| 1989 | 1 |
| 1990 | 1 |
| 1991 | 1 |
| 1993 | 1 |
| 1994 | 2 |
| 1996 | 4 |
| 1998 | 1 |
| 2000 | 2 |
| 2006 | 4 |
| 2009 | 2 |
| 2011 | 2 |
| 2013 | 4 |
| 2014 | 4 |
| 2015 | 5 |
| 2016 | 5 |
| 2017 | 6 |
| 2018 | 6 |
| 2019 | 3 |
| 2020 | 4 |
| 2021 | 2 |
| 2023 | 1 |
| 2025 | 0 |