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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1960 | 1 |
| 1962 | 3 |
| 1964 | 1 |
| 1966 | 1 |
| 1967 | 1 |
| 1969 | 1 |
| 1972 | 3 |
| 1973 | 2 |
| 1974 | 1 |
| 1976 | 2 |
| 1977 | 1 |
| 1982 | 1 |
| 1984 | 1 |
| 1985 | 4 |
| 1986 | 2 |
| 1987 | 8 |
| 1988 | 6 |
| 1989 | 6 |
| 1990 | 2 |
| 1991 | 4 |
| 1992 | 5 |
| 1993 | 5 |
| 1994 | 5 |
| 1995 | 5 |
| 1996 | 9 |
| 1997 | 14 |
| 1998 | 11 |
| 1999 | 30 |
| 2000 | 24 |
| 2001 | 37 |
| 2002 | 66 |
| 2003 | 48 |
| 2004 | 80 |
| 2005 | 105 |
| 2006 | 120 |
| 2007 | 138 |
| 2008 | 146 |
| 2009 | 195 |
| 2010 | 251 |
| 2011 | 232 |
| 2012 | 264 |
| 2013 | 305 |
| 2014 | 333 |
| 2015 | 303 |
| 2016 | 287 |
| 2017 | 311 |
| 2018 | 272 |
| 2019 | 265 |
| 2020 | 274 |
| 2021 | 268 |
| 2022 | 229 |
| 2023 | 210 |
| 2024 | 203 |