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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1955 | 4 |
| 1956 | 142 |
| 1957 | 203 |
| 1958 | 169 |
| 1959 | 70 |
| 1961 | 1 |
| 1962 | 2 |
| 1963 | 1 |
| 1964 | 7 |
| 1965 | 74 |
| 1966 | 139 |
| 1967 | 196 |
| 1968 | 216 |
| 1969 | 259 |
| 1970 | 242 |
| 1971 | 288 |
| 1972 | 248 |
| 1973 | 285 |
| 1974 | 301 |
| 1975 | 200 |
| 1976 | 182 |
| 1977 | 161 |
| 1978 | 142 |
| 1979 | 158 |
| 1980 | 144 |
| 1981 | 110 |
| 1982 | 132 |
| 1983 | 145 |
| 1984 | 139 |
| 1985 | 150 |
| 1986 | 139 |
| 1987 | 115 |
| 1988 | 125 |
| 1989 | 110 |
| 1990 | 136 |
| 1991 | 118 |
| 1992 | 127 |
| 1993 | 133 |
| 1994 | 120 |
| 1995 | 129 |
| 1996 | 123 |
| 1997 | 138 |
| 1998 | 128 |
| 1999 | 132 |
| 2000 | 138 |
| 2001 | 157 |
| 2002 | 155 |
| 2003 | 176 |
| 2004 | 154 |
| 2005 | 167 |
| 2006 | 195 |
| 2007 | 199 |
| 2008 | 188 |
| 2009 | 218 |
| 2010 | 201 |
| 2011 | 236 |
| 2012 | 229 |
| 2013 | 200 |
| 2014 | 192 |
| 2015 | 195 |
| 2016 | 182 |
| 2017 | 181 |
| 2018 | 161 |
| 2019 | 190 |
| 2020 | 173 |
| 2021 | 134 |
| 2022 | 142 |
| 2023 | 127 |
| 2024 | 126 |
| 2025 | 131 |