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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1965 | 7 |
| 1966 | 16 |
| 1967 | 19 |
| 1968 | 22 |
| 1969 | 32 |
| 1970 | 25 |
| 1971 | 28 |
| 1972 | 26 |
| 1973 | 41 |
| 1974 | 38 |
| 1975 | 35 |
| 1976 | 32 |
| 1977 | 27 |
| 1978 | 42 |
| 1979 | 46 |
| 1980 | 52 |
| 1981 | 58 |
| 1982 | 57 |
| 1983 | 82 |
| 1984 | 76 |
| 1985 | 96 |
| 1986 | 87 |
| 1987 | 130 |
| 1988 | 140 |
| 1989 | 164 |
| 1990 | 182 |
| 1991 | 208 |
| 1992 | 225 |
| 1993 | 187 |
| 1994 | 234 |
| 1995 | 240 |
| 1996 | 229 |
| 1997 | 216 |
| 1998 | 280 |
| 1999 | 220 |
| 2000 | 214 |
| 2001 | 198 |
| 2002 | 203 |
| 2003 | 265 |
| 2004 | 323 |
| 2005 | 273 |
| 2006 | 278 |
| 2007 | 334 |
| 2008 | 319 |
| 2009 | 321 |
| 2010 | 363 |
| 2011 | 308 |
| 2012 | 322 |
| 2013 | 337 |
| 2014 | 382 |
| 2015 | 365 |
| 2016 | 372 |
| 2017 | 364 |
| 2018 | 344 |
| 2019 | 415 |
| 2020 | 296 |
| 2021 | 201 |
| 2022 | 235 |
| 2023 | 88 |