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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1960 | 1 |
| 1961 | 2 |
| 1962 | 1 |
| 1974 | 2 |
| 1976 | 1 |
| 1977 | 14 |
| 1978 | 28 |
| 1979 | 26 |
| 1980 | 29 |
| 1981 | 31 |
| 1982 | 33 |
| 1983 | 30 |
| 1984 | 34 |
| 1985 | 28 |
| 1986 | 45 |
| 1987 | 64 |
| 1988 | 59 |
| 1989 | 73 |
| 1990 | 106 |
| 1991 | 92 |
| 1992 | 98 |
| 1993 | 107 |
| 1994 | 168 |
| 1995 | 155 |
| 1996 | 145 |
| 1997 | 159 |
| 1998 | 147 |
| 1999 | 175 |
| 2000 | 184 |
| 2001 | 193 |
| 2002 | 174 |
| 2003 | 180 |
| 2004 | 209 |
| 2005 | 260 |
| 2006 | 243 |
| 2007 | 274 |
| 2008 | 304 |
| 2009 | 321 |
| 2010 | 321 |
| 2011 | 374 |
| 2012 | 386 |
| 2013 | 367 |
| 2014 | 390 |
| 2015 | 390 |
| 2016 | 400 |
| 2017 | 379 |
| 2018 | 383 |
| 2019 | 367 |
| 2020 | 364 |
| 2021 | 352 |
| 2022 | 244 |
| 2023 | 188 |
| 2024 | 217 |