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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1960 | 15 |
| 1961 | 17 |
| 1962 | 27 |
| 1963 | 41 |
| 1964 | 88 |
| 1965 | 84 |
| 1966 | 82 |
| 1967 | 265 |
| 1968 | 119 |
| 1969 | 127 |
| 1970 | 144 |
| 1971 | 187 |
| 1972 | 217 |
| 1973 | 218 |
| 1974 | 317 |
| 1975 | 282 |
| 1976 | 259 |
| 1977 | 291 |
| 1978 | 257 |
| 1979 | 290 |
| 1980 | 261 |
| 1981 | 242 |
| 1982 | 230 |
| 1983 | 232 |
| 1984 | 247 |
| 1985 | 257 |
| 1986 | 293 |
| 1987 | 279 |
| 1988 | 294 |
| 1989 | 295 |
| 1990 | 366 |
| 1991 | 471 |
| 1992 | 424 |
| 1993 | 464 |
| 1994 | 420 |
| 1995 | 457 |
| 1996 | 507 |
| 1997 | 469 |
| 1998 | 501 |
| 1999 | 351 |
| 2000 | 339 |
| 2001 | 316 |
| 2002 | 279 |
| 2003 | 331 |
| 2004 | 360 |
| 2005 | 335 |
| 2006 | 306 |
| 2007 | 355 |
| 2008 | 375 |
| 2009 | 372 |
| 2010 | 364 |
| 2011 | 365 |
| 2012 | 353 |
| 2013 | 396 |
| 2014 | 403 |
| 2015 | 491 |
| 2016 | 549 |
| 2017 | 599 |
| 2018 | 535 |
| 2019 | 486 |
| 2020 | 562 |
| 2021 | 561 |
| 2022 | 511 |
| 2023 | 358 |
| 2024 | 307 |