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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 2 |
| 1953 | 1 |
| 1954 | 2 |
| 1955 | 7 |
| 1956 | 3 |
| 1957 | 2 |
| 1959 | 2 |
| 1960 | 2 |
| 1961 | 5 |
| 1962 | 6 |
| 1963 | 13 |
| 1964 | 14 |
| 1965 | 14 |
| 1966 | 21 |
| 1967 | 15 |
| 1968 | 19 |
| 1969 | 25 |
| 1970 | 21 |
| 1971 | 26 |
| 1972 | 14 |
| 1973 | 21 |
| 1974 | 25 |
| 1975 | 17 |
| 1976 | 16 |
| 1977 | 16 |
| 1978 | 37 |
| 1979 | 35 |
| 1980 | 36 |
| 1981 | 54 |
| 1982 | 69 |
| 1983 | 62 |
| 1984 | 69 |
| 1985 | 91 |
| 1986 | 77 |
| 1987 | 76 |
| 1988 | 84 |
| 1989 | 101 |
| 1990 | 104 |
| 1991 | 105 |
| 1992 | 123 |
| 1993 | 105 |
| 1994 | 131 |
| 1995 | 119 |
| 1996 | 138 |
| 1997 | 137 |
| 1998 | 172 |
| 1999 | 139 |
| 2000 | 134 |
| 2001 | 152 |
| 2002 | 158 |
| 2003 | 159 |
| 2004 | 150 |
| 2005 | 170 |
| 2006 | 139 |
| 2007 | 158 |
| 2008 | 168 |
| 2009 | 176 |
| 2010 | 176 |
| 2011 | 203 |
| 2012 | 221 |
| 2013 | 213 |
| 2014 | 179 |
| 2015 | 220 |
| 2016 | 233 |
| 2017 | 215 |
| 2018 | 221 |
| 2019 | 188 |
| 2020 | 223 |
| 2021 | 261 |
| 2022 | 238 |
| 2023 | 203 |
| 2024 | 196 |
| 2025 | 49 |