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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1972 | 15 |
| 1973 | 18 |
| 1974 | 34 |
| 1975 | 14 |
| 1976 | 37 |
| 1977 | 39 |
| 1978 | 50 |
| 1979 | 39 |
| 1980 | 39 |
| 1981 | 37 |
| 1982 | 45 |
| 1983 | 58 |
| 1984 | 51 |
| 1985 | 47 |
| 1986 | 120 |
| 1987 | 55 |
| 1988 | 68 |
| 1989 | 62 |
| 1990 | 73 |
| 1991 | 76 |
| 1992 | 53 |
| 1993 | 77 |
| 1994 | 44 |
| 1995 | 36 |
| 1996 | 121 |
| 1997 | 46 |
| 1998 | 69 |
| 1999 | 57 |
| 2000 | 56 |
| 2001 | 64 |
| 2023 | 0 |