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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1962 | 13 |
| 1963 | 14 |
| 1964 | 15 |
| 1965 | 30 |
| 1966 | 32 |
| 1967 | 13 |
| 1968 | 10 |
| 1969 | 41 |
| 1970 | 18 |
| 1971 | 17 |
| 1972 | 30 |
| 1973 | 22 |
| 1974 | 24 |
| 1975 | 21 |
| 1976 | 23 |
| 1977 | 16 |
| 1978 | 10 |
| 1979 | 14 |
| 1980 | 7 |
| 1981 | 18 |
| 1982 | 25 |
| 1983 | 31 |
| 1984 | 29 |
| 1985 | 23 |
| 1986 | 15 |
| 1987 | 19 |
| 1988 | 13 |
| 1989 | 20 |
| 1990 | 9 |
| 2008 | 77 |
| 2009 | 106 |
| 2010 | 118 |
| 2011 | 229 |
| 2012 | 167 |
| 2013 | 310 |
| 2014 | 276 |
| 2015 | 376 |
| 2016 | 293 |
| 2017 | 167 |
| 2018 | 125 |
| 2019 | 133 |
| 2020 | 164 |
| 2021 | 240 |
| 2022 | 241 |
| 2023 | 0 |