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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1955 | 2 |
| 1956 | 1 |
| 1964 | 1 |
| 1966 | 4 |
| 1967 | 3 |
| 1969 | 1 |
| 1970 | 2 |
| 1971 | 1 |
| 1972 | 2 |
| 1974 | 2 |
| 1975 | 1 |
| 1976 | 2 |
| 1977 | 1 |
| 1981 | 2 |
| 1982 | 4 |
| 1983 | 5 |
| 1984 | 4 |
| 1985 | 2 |
| 1986 | 5 |
| 1987 | 1 |
| 1988 | 2 |
| 1989 | 1 |
| 1990 | 1 |
| 1991 | 4 |
| 1993 | 2 |
| 1994 | 5 |
| 1995 | 2 |
| 1996 | 4 |
| 1997 | 11 |
| 1998 | 8 |
| 1999 | 15 |
| 2000 | 16 |
| 2001 | 21 |
| 2002 | 11 |
| 2003 | 13 |
| 2004 | 39 |
| 2005 | 39 |
| 2006 | 66 |
| 2007 | 60 |
| 2008 | 78 |
| 2009 | 80 |
| 2010 | 100 |
| 2011 | 106 |
| 2012 | 155 |
| 2013 | 150 |
| 2014 | 171 |
| 2015 | 162 |
| 2016 | 155 |
| 2017 | 185 |
| 2018 | 195 |
| 2019 | 211 |
| 2020 | 256 |
| 2021 | 249 |
| 2022 | 269 |
| 2023 | 263 |
| 2024 | 231 |
| 2025 | 3 |