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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1961 | 1 |
| 1963 | 1 |
| 1964 | 1 |
| 1966 | 2 |
| 1967 | 1 |
| 1973 | 1 |
| 1975 | 1 |
| 1977 | 1 |
| 1979 | 1 |
| 1980 | 1 |
| 1981 | 2 |
| 1985 | 5 |
| 1986 | 2 |
| 1987 | 13 |
| 1988 | 7 |
| 1989 | 5 |
| 1990 | 4 |
| 1991 | 5 |
| 1992 | 6 |
| 1993 | 7 |
| 1994 | 8 |
| 1995 | 5 |
| 1996 | 8 |
| 1997 | 13 |
| 1998 | 15 |
| 1999 | 36 |
| 2000 | 35 |
| 2001 | 24 |
| 2002 | 15 |
| 2003 | 46 |
| 2004 | 59 |
| 2005 | 64 |
| 2006 | 59 |
| 2007 | 67 |
| 2008 | 67 |
| 2009 | 53 |
| 2010 | 89 |
| 2011 | 85 |
| 2012 | 87 |
| 2013 | 134 |
| 2014 | 133 |
| 2015 | 141 |
| 2016 | 159 |
| 2017 | 168 |
| 2018 | 178 |
| 2019 | 148 |
| 2020 | 218 |
| 2021 | 233 |
| 2022 | 196 |
| 2023 | 208 |
| 2024 | 237 |