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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1955 | 1 |
| 1956 | 6 |
| 1957 | 5 |
| 1958 | 3 |
| 1959 | 2 |
| 1964 | 1 |
| 1965 | 14 |
| 1966 | 30 |
| 1967 | 45 |
| 1968 | 66 |
| 1969 | 60 |
| 1970 | 81 |
| 1971 | 135 |
| 1972 | 124 |
| 1973 | 108 |
| 1974 | 111 |
| 1975 | 109 |
| 1976 | 100 |
| 1977 | 98 |
| 1978 | 88 |
| 1979 | 91 |
| 1980 | 64 |
| 1981 | 92 |
| 1982 | 52 |
| 1983 | 59 |
| 1984 | 67 |
| 1985 | 77 |
| 1986 | 49 |
| 1987 | 84 |
| 1988 | 68 |
| 1989 | 54 |
| 1990 | 48 |
| 1991 | 58 |
| 1992 | 49 |
| 1993 | 57 |
| 1994 | 57 |
| 1995 | 58 |
| 1996 | 107 |
| 1997 | 106 |
| 1998 | 133 |
| 1999 | 128 |
| 2000 | 186 |
| 2001 | 234 |
| 2002 | 225 |
| 2003 | 218 |
| 2004 | 224 |
| 2005 | 144 |
| 2006 | 162 |
| 2007 | 139 |
| 2008 | 122 |
| 2009 | 126 |
| 2010 | 111 |
| 2011 | 154 |
| 2012 | 193 |
| 2013 | 152 |
| 2014 | 162 |
| 2015 | 140 |
| 2016 | 176 |
| 2017 | 144 |
| 2018 | 144 |
| 2019 | 143 |
| 2020 | 154 |
| 2021 | 165 |
| 2022 | 216 |
| 2023 | 161 |
| 2024 | 62 |