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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1871 | 1 |
| 1874 | 1 |
| 1875 | 3 |
| 1878 | 2 |
| 1881 | 1 |
| 1882 | 2 |
| 1883 | 1 |
| 1885 | 2 |
| 1886 | 2 |
| 1890 | 1 |
| 1970 | 2 |
| 1971 | 4 |
| 1972 | 1 |
| 1976 | 3 |
| 1977 | 6 |
| 1978 | 5 |
| 1979 | 9 |
| 1980 | 12 |
| 1981 | 7 |
| 1982 | 4 |
| 1983 | 4 |
| 1984 | 1 |
| 1985 | 1 |
| 1987 | 1 |
| 1988 | 1 |
| 1989 | 1 |
| 1990 | 1 |
| 1992 | 1 |
| 1996 | 3 |
| 1998 | 3 |
| 1999 | 1 |
| 2000 | 2 |
| 2005 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2025 | 0 |