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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 19 |
| 1968 | 33 |
| 1969 | 30 |
| 1970 | 59 |
| 1971 | 47 |
| 1972 | 60 |
| 1973 | 48 |
| 1974 | 44 |
| 1975 | 44 |
| 1976 | 47 |
| 1977 | 50 |
| 1978 | 46 |
| 1979 | 39 |
| 1980 | 43 |
| 1981 | 47 |
| 1982 | 46 |
| 1983 | 52 |
| 1984 | 45 |
| 1985 | 49 |
| 1986 | 48 |
| 1987 | 46 |
| 1988 | 50 |
| 1989 | 47 |
| 1990 | 40 |
| 1991 | 39 |
| 1992 | 41 |
| 1993 | 39 |
| 1994 | 33 |
| 1995 | 30 |
| 1996 | 36 |
| 1997 | 31 |
| 1998 | 32 |
| 1999 | 31 |
| 2000 | 27 |
| 2024 | 0 |