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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1955 | 1 |
| 1963 | 1 |
| 1965 | 3 |
| 1966 | 2 |
| 1967 | 2 |
| 1968 | 8 |
| 1969 | 2 |
| 1970 | 7 |
| 1971 | 7 |
| 1972 | 6 |
| 1973 | 14 |
| 1974 | 2 |
| 1975 | 7 |
| 1976 | 7 |
| 1977 | 13 |
| 1978 | 13 |
| 1979 | 20 |
| 1980 | 26 |
| 1981 | 16 |
| 1982 | 30 |
| 1983 | 29 |
| 1984 | 27 |
| 1985 | 19 |
| 1986 | 32 |
| 1987 | 46 |
| 1988 | 35 |
| 1989 | 30 |
| 1990 | 24 |
| 1991 | 28 |
| 1992 | 40 |
| 1993 | 41 |
| 1994 | 39 |
| 1995 | 57 |
| 1996 | 57 |
| 1997 | 46 |
| 1998 | 64 |
| 1999 | 63 |
| 2000 | 65 |
| 2001 | 69 |
| 2002 | 72 |
| 2003 | 70 |
| 2004 | 84 |
| 2005 | 94 |
| 2006 | 120 |
| 2007 | 140 |
| 2008 | 121 |
| 2009 | 133 |
| 2010 | 151 |
| 2011 | 141 |
| 2012 | 139 |
| 2013 | 165 |
| 2014 | 150 |
| 2015 | 141 |
| 2016 | 156 |
| 2017 | 169 |
| 2018 | 184 |
| 2019 | 187 |
| 2020 | 232 |
| 2021 | 241 |
| 2022 | 254 |
| 2023 | 200 |
| 2024 | 159 |
| 2025 | 1 |