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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1965 | 2 |
| 1966 | 6 |
| 1967 | 10 |
| 1968 | 22 |
| 1969 | 16 |
| 1970 | 34 |
| 1971 | 55 |
| 1972 | 43 |
| 1973 | 80 |
| 1974 | 84 |
| 1975 | 98 |
| 1976 | 90 |
| 1977 | 137 |
| 1978 | 165 |
| 1979 | 225 |
| 1980 | 243 |
| 1981 | 320 |
| 1982 | 307 |
| 1983 | 376 |
| 1984 | 381 |
| 1985 | 357 |
| 1986 | 402 |
| 1987 | 417 |
| 1988 | 456 |
| 1989 | 425 |
| 1990 | 443 |
| 1991 | 462 |
| 1992 | 388 |
| 1993 | 417 |
| 1994 | 376 |
| 1995 | 320 |
| 1996 | 338 |
| 1997 | 292 |
| 1998 | 308 |
| 1999 | 313 |
| 2000 | 293 |
| 2001 | 283 |
| 2002 | 255 |
| 2003 | 274 |
| 2004 | 279 |
| 2005 | 287 |
| 2006 | 305 |
| 2007 | 286 |
| 2008 | 289 |
| 2009 | 270 |
| 2010 | 291 |
| 2011 | 305 |
| 2012 | 324 |
| 2013 | 319 |
| 2014 | 268 |
| 2015 | 238 |
| 2016 | 242 |
| 2017 | 230 |
| 2018 | 217 |
| 2019 | 226 |
| 2020 | 226 |
| 2021 | 149 |
| 2022 | 82 |
| 2023 | 72 |
| 2024 | 44 |