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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1952 | 58 |
| 1953 | 95 |
| 1954 | 125 |
| 1955 | 136 |
| 1956 | 176 |
| 1957 | 103 |
| 1958 | 132 |
| 1959 | 106 |
| 1960 | 74 |
| 1961 | 209 |
| 1962 | 137 |
| 1963 | 270 |
| 1964 | 177 |
| 1965 | 152 |
| 1966 | 231 |
| 1967 | 186 |
| 1968 | 229 |
| 1969 | 305 |
| 1970 | 240 |
| 1971 | 236 |
| 1972 | 270 |
| 1973 | 255 |
| 1974 | 262 |
| 1975 | 246 |
| 1976 | 276 |
| 1977 | 238 |
| 1978 | 196 |
| 1979 | 192 |
| 1980 | 143 |
| 2011 | 109 |
| 2012 | 108 |
| 2013 | 113 |
| 2014 | 80 |
| 2015 | 135 |
| 2016 | 60 |
| 2017 | 65 |
| 2018 | 71 |
| 2019 | 71 |
| 2020 | 65 |
| 2021 | 71 |
| 2022 | 85 |
| 2023 | 54 |
| 2024 | 50 |
| 2025 | 22 |