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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1960 | 28 |
| 1961 | 31 |
| 1962 | 46 |
| 1963 | 68 |
| 1964 | 47 |
| 1965 | 56 |
| 1966 | 38 |
| 1967 | 58 |
| 1968 | 75 |
| 1969 | 63 |
| 1970 | 108 |
| 1971 | 193 |
| 1972 | 227 |
| 1973 | 243 |
| 1974 | 292 |
| 1975 | 286 |
| 1976 | 260 |
| 1977 | 254 |
| 1978 | 248 |
| 1979 | 239 |
| 1980 | 291 |
| 1981 | 363 |
| 1982 | 322 |
| 1983 | 315 |
| 1984 | 322 |
| 1985 | 308 |
| 1986 | 333 |
| 1987 | 333 |
| 1988 | 331 |
| 1989 | 324 |
| 1990 | 269 |
| 1991 | 298 |
| 1992 | 263 |
| 1993 | 313 |
| 1994 | 349 |
| 1995 | 358 |
| 1996 | 345 |
| 1997 | 325 |
| 1998 | 298 |
| 1999 | 407 |
| 2000 | 407 |
| 2001 | 426 |
| 2002 | 339 |
| 2003 | 385 |
| 2004 | 472 |
| 2005 | 586 |
| 2006 | 814 |
| 2007 | 884 |
| 2008 | 746 |
| 2009 | 656 |
| 2010 | 671 |
| 2011 | 621 |
| 2012 | 587 |
| 2013 | 539 |
| 2014 | 487 |
| 2015 | 472 |
| 2016 | 504 |
| 2017 | 453 |
| 2018 | 398 |
| 2019 | 370 |
| 2020 | 328 |
| 2021 | 264 |
| 2022 | 193 |
| 2023 | 146 |
| 2024 | 68 |