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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1962 | 144 |
| 1963 | 318 |
| 1964 | 349 |
| 1965 | 438 |
| 1966 | 226 |
| 1967 | 312 |
| 1968 | 392 |
| 1969 | 321 |
| 1970 | 268 |
| 1971 | 340 |
| 1972 | 311 |
| 1973 | 399 |
| 1974 | 301 |
| 1975 | 297 |
| 1976 | 289 |
| 1977 | 353 |
| 1978 | 337 |
| 1979 | 312 |
| 1980 | 301 |
| 1981 | 196 |
| 1982 | 307 |
| 1983 | 244 |
| 1984 | 211 |
| 1985 | 250 |
| 1986 | 241 |
| 1987 | 207 |
| 1988 | 242 |
| 1989 | 327 |
| 1990 | 303 |
| 1991 | 315 |
| 1992 | 330 |
| 1993 | 395 |
| 1994 | 403 |
| 1995 | 377 |
| 1996 | 349 |
| 1997 | 408 |
| 1998 | 404 |
| 1999 | 307 |
| 2000 | 333 |
| 2001 | 288 |
| 2002 | 331 |
| 2003 | 335 |
| 2004 | 327 |
| 2005 | 256 |
| 2006 | 232 |
| 2007 | 296 |
| 2008 | 186 |
| 2009 | 185 |
| 2010 | 187 |
| 2011 | 180 |
| 2012 | 171 |
| 2013 | 157 |
| 2014 | 141 |
| 2015 | 134 |
| 2016 | 139 |
| 2017 | 88 |
| 2018 | 81 |
| 2019 | 83 |
| 2020 | 104 |
| 2021 | 160 |
| 2022 | 131 |
| 2023 | 147 |