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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1953 | 1 |
| 1954 | 3 |
| 1956 | 4 |
| 1957 | 4 |
| 1958 | 4 |
| 1959 | 5 |
| 1960 | 5 |
| 1961 | 5 |
| 1962 | 3 |
| 1964 | 1 |
| 1965 | 14 |
| 1966 | 22 |
| 1967 | 24 |
| 1968 | 31 |
| 1969 | 31 |
| 1970 | 36 |
| 1971 | 31 |
| 1972 | 34 |
| 1973 | 26 |
| 1974 | 33 |
| 1975 | 38 |
| 1976 | 40 |
| 1977 | 29 |
| 1978 | 42 |
| 1979 | 41 |
| 1980 | 45 |
| 1981 | 37 |
| 1982 | 47 |
| 1983 | 42 |
| 1984 | 65 |
| 1985 | 80 |
| 1986 | 69 |
| 1987 | 67 |
| 1988 | 94 |
| 1989 | 93 |
| 1990 | 92 |
| 1991 | 94 |
| 1992 | 78 |
| 1993 | 104 |
| 1994 | 76 |
| 1995 | 64 |
| 1996 | 67 |
| 1997 | 73 |
| 1998 | 88 |
| 1999 | 84 |
| 2000 | 91 |
| 2001 | 82 |
| 2002 | 124 |
| 2003 | 112 |
| 2004 | 112 |
| 2005 | 113 |
| 2006 | 130 |
| 2007 | 153 |
| 2008 | 168 |
| 2009 | 171 |
| 2010 | 168 |
| 2011 | 185 |
| 2012 | 205 |
| 2013 | 191 |
| 2014 | 204 |
| 2015 | 200 |
| 2016 | 162 |
| 2017 | 152 |
| 2018 | 133 |
| 2019 | 135 |
| 2020 | 109 |
| 2021 | 87 |
| 2022 | 141 |
| 2023 | 126 |
| 2024 | 165 |
| 2025 | 88 |