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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1973 | 2 |
| 1974 | 6 |
| 1975 | 4 |
| 1976 | 6 |
| 1977 | 3 |
| 1978 | 8 |
| 1979 | 3 |
| 1980 | 10 |
| 1981 | 4 |
| 1982 | 4 |
| 1983 | 4 |
| 1984 | 6 |
| 1985 | 4 |
| 1986 | 2 |
| 1987 | 8 |
| 1988 | 10 |
| 1989 | 10 |
| 1990 | 8 |
| 1991 | 14 |
| 1992 | 16 |
| 1993 | 23 |
| 1994 | 36 |
| 1995 | 44 |
| 1996 | 31 |
| 1997 | 38 |
| 1998 | 68 |
| 1999 | 55 |
| 2000 | 79 |
| 2001 | 92 |
| 2002 | 159 |
| 2003 | 250 |
| 2004 | 356 |
| 2005 | 439 |
| 2006 | 453 |
| 2007 | 477 |
| 2008 | 410 |
| 2009 | 386 |
| 2010 | 334 |
| 2011 | 341 |
| 2012 | 289 |
| 2013 | 358 |
| 2014 | 275 |
| 2015 | 287 |
| 2016 | 224 |
| 2017 | 214 |
| 2018 | 213 |
| 2019 | 184 |
| 2020 | 169 |
| 2021 | 84 |
| 2022 | 11 |
| 2023 | 6 |
| 2024 | 2 |