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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 49 |
| 1967 | 67 |
| 1968 | 58 |
| 1969 | 66 |
| 1970 | 80 |
| 1971 | 74 |
| 1972 | 63 |
| 1973 | 83 |
| 1974 | 111 |
| 1975 | 84 |
| 1976 | 80 |
| 1977 | 91 |
| 1978 | 130 |
| 1979 | 127 |
| 1980 | 187 |
| 1981 | 233 |
| 1982 | 207 |
| 1983 | 203 |
| 1984 | 214 |
| 1985 | 173 |
| 1986 | 165 |
| 1987 | 161 |
| 1988 | 157 |
| 1989 | 147 |
| 1990 | 141 |
| 1991 | 218 |
| 1992 | 213 |
| 1993 | 243 |
| 1994 | 239 |
| 1995 | 247 |
| 1996 | 276 |
| 1997 | 292 |
| 1998 | 251 |
| 1999 | 246 |
| 2000 | 248 |
| 2001 | 277 |
| 2002 | 267 |
| 2003 | 276 |
| 2004 | 337 |
| 2005 | 425 |
| 2006 | 471 |
| 2007 | 400 |
| 2008 | 379 |
| 2009 | 439 |
| 2010 | 453 |
| 2011 | 479 |
| 2012 | 466 |
| 2013 | 395 |
| 2014 | 397 |
| 2015 | 428 |
| 2016 | 407 |
| 2017 | 378 |
| 2018 | 333 |
| 2019 | 302 |
| 2020 | 308 |
| 2021 | 325 |
| 2022 | 260 |
| 2023 | 248 |
| 2024 | 289 |