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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1956 | 1 |
| 1960 | 1 |
| 1963 | 1 |
| 1964 | 3 |
| 1965 | 6 |
| 1966 | 1 |
| 1967 | 1 |
| 1968 | 2 |
| 1969 | 2 |
| 1970 | 4 |
| 1971 | 2 |
| 1972 | 3 |
| 1973 | 2 |
| 1976 | 5 |
| 1977 | 2 |
| 1978 | 2 |
| 1979 | 2 |
| 1980 | 3 |
| 1981 | 2 |
| 1982 | 3 |
| 1984 | 5 |
| 1985 | 8 |
| 1986 | 19 |
| 1987 | 20 |
| 1988 | 23 |
| 1989 | 29 |
| 1990 | 21 |
| 1991 | 21 |
| 1992 | 21 |
| 1993 | 36 |
| 1994 | 42 |
| 1995 | 38 |
| 1996 | 38 |
| 1997 | 44 |
| 1998 | 38 |
| 1999 | 40 |
| 2000 | 38 |
| 2001 | 48 |
| 2002 | 64 |
| 2003 | 64 |
| 2004 | 95 |
| 2005 | 118 |
| 2006 | 98 |
| 2007 | 116 |
| 2008 | 108 |
| 2009 | 124 |
| 2010 | 126 |
| 2011 | 147 |
| 2012 | 162 |
| 2013 | 148 |
| 2014 | 138 |
| 2015 | 153 |
| 2016 | 156 |
| 2017 | 162 |
| 2018 | 154 |
| 2019 | 188 |
| 2020 | 238 |
| 2021 | 304 |
| 2022 | 284 |
| 2023 | 239 |
| 2024 | 255 |
| 2025 | 186 |