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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 66 |
| 1968 | 103 |
| 1969 | 86 |
| 1970 | 134 |
| 1971 | 131 |
| 1972 | 211 |
| 1973 | 253 |
| 1974 | 252 |
| 1975 | 217 |
| 1976 | 285 |
| 1977 | 316 |
| 1978 | 309 |
| 1979 | 393 |
| 1980 | 308 |
| 1981 | 335 |
| 1982 | 276 |
| 1983 | 243 |
| 1984 | 359 |
| 1985 | 232 |
| 1986 | 226 |
| 1987 | 313 |
| 1988 | 290 |
| 1989 | 328 |
| 1990 | 312 |
| 1991 | 418 |
| 1992 | 310 |
| 1993 | 354 |
| 1994 | 358 |
| 1995 | 357 |
| 1996 | 318 |
| 1997 | 291 |
| 1998 | 293 |
| 1999 | 234 |
| 2000 | 205 |
| 2001 | 44 |
| 2024 | 0 |