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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 40 |
| 1960 | 124 |
| 1961 | 117 |
| 1962 | 93 |
| 1963 | 118 |
| 1964 | 134 |
| 1965 | 155 |
| 1966 | 165 |
| 1967 | 152 |
| 1968 | 160 |
| 1969 | 164 |
| 1970 | 145 |
| 1971 | 144 |
| 1972 | 154 |
| 1973 | 189 |
| 1974 | 175 |
| 1975 | 173 |
| 1976 | 199 |
| 1977 | 222 |
| 1978 | 206 |
| 1979 | 273 |
| 1980 | 274 |
| 1981 | 262 |
| 1982 | 292 |
| 1983 | 291 |
| 1984 | 314 |
| 1985 | 243 |
| 1986 | 270 |
| 1987 | 253 |
| 1988 | 290 |
| 1989 | 304 |
| 1990 | 249 |
| 1991 | 236 |
| 1992 | 216 |
| 1993 | 186 |
| 1994 | 172 |
| 1995 | 188 |
| 1996 | 199 |
| 1997 | 194 |
| 1998 | 215 |
| 1999 | 218 |
| 2000 | 300 |
| 2001 | 299 |
| 2002 | 265 |
| 2003 | 285 |
| 2004 | 316 |
| 2005 | 298 |
| 2006 | 315 |
| 2007 | 290 |
| 2008 | 289 |
| 2009 | 284 |
| 2010 | 298 |
| 2011 | 308 |
| 2012 | 316 |
| 2023 | 0 |