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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1965 | 1 |
| 1966 | 2 |
| 1967 | 2 |
| 1969 | 4 |
| 1970 | 8 |
| 1971 | 3 |
| 1972 | 3 |
| 1973 | 4 |
| 1974 | 2 |
| 1975 | 13 |
| 1976 | 3 |
| 1977 | 4 |
| 1978 | 2 |
| 1979 | 15 |
| 1980 | 8 |
| 1981 | 14 |
| 1982 | 13 |
| 1983 | 18 |
| 1984 | 24 |
| 1985 | 13 |
| 1986 | 20 |
| 1987 | 23 |
| 1988 | 56 |
| 1989 | 124 |
| 1990 | 137 |
| 1991 | 188 |
| 1992 | 180 |
| 1993 | 220 |
| 1994 | 172 |
| 1995 | 187 |
| 1996 | 166 |
| 1997 | 138 |
| 1998 | 209 |
| 1999 | 162 |
| 2000 | 178 |
| 2001 | 178 |
| 2002 | 183 |
| 2003 | 227 |
| 2004 | 271 |
| 2005 | 285 |
| 2006 | 365 |
| 2007 | 370 |
| 2008 | 417 |
| 2009 | 452 |
| 2010 | 467 |
| 2011 | 485 |
| 2012 | 439 |
| 2013 | 434 |
| 2014 | 429 |
| 2015 | 511 |
| 2016 | 386 |
| 2017 | 386 |
| 2018 | 394 |
| 2019 | 360 |
| 2020 | 340 |
| 2021 | 322 |
| 2022 | 212 |
| 2023 | 153 |
| 2024 | 54 |