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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1962 | 1 |
| 1963 | 1 |
| 1967 | 1 |
| 1970 | 1 |
| 1971 | 1 |
| 1972 | 1 |
| 1973 | 4 |
| 1974 | 4 |
| 1975 | 6 |
| 1976 | 5 |
| 1977 | 8 |
| 1978 | 4 |
| 1979 | 7 |
| 1980 | 5 |
| 1981 | 6 |
| 1982 | 14 |
| 1983 | 27 |
| 1984 | 22 |
| 1985 | 58 |
| 1986 | 25 |
| 1987 | 18 |
| 1988 | 29 |
| 1989 | 31 |
| 1990 | 71 |
| 1991 | 134 |
| 1992 | 151 |
| 1993 | 124 |
| 1994 | 122 |
| 1995 | 174 |
| 1996 | 178 |
| 1997 | 258 |
| 1998 | 269 |
| 1999 | 193 |
| 2000 | 173 |
| 2001 | 215 |
| 2002 | 255 |
| 2003 | 348 |
| 2004 | 366 |
| 2005 | 303 |
| 2006 | 323 |
| 2007 | 366 |
| 2008 | 396 |
| 2009 | 349 |
| 2010 | 361 |
| 2011 | 367 |
| 2012 | 351 |
| 2013 | 405 |
| 2014 | 425 |
| 2015 | 406 |
| 2016 | 376 |
| 2017 | 354 |
| 2018 | 385 |
| 2019 | 387 |
| 2020 | 308 |
| 2021 | 164 |
| 2022 | 23 |
| 2023 | 9 |
| 2024 | 11 |