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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 9 |
| 1952 | 20 |
| 1953 | 22 |
| 1954 | 27 |
| 1955 | 24 |
| 1956 | 19 |
| 1957 | 15 |
| 1958 | 17 |
| 1959 | 2 |
| 1964 | 2 |
| 1965 | 36 |
| 1966 | 89 |
| 1967 | 113 |
| 1968 | 132 |
| 1969 | 191 |
| 1970 | 128 |
| 1971 | 176 |
| 1972 | 148 |
| 1973 | 164 |
| 1974 | 195 |
| 1975 | 149 |
| 1976 | 101 |
| 1977 | 105 |
| 1978 | 141 |
| 1979 | 129 |
| 1980 | 115 |
| 1981 | 120 |
| 1982 | 107 |
| 1983 | 139 |
| 1984 | 122 |
| 1985 | 144 |
| 1986 | 161 |
| 1987 | 131 |
| 1988 | 178 |
| 1989 | 179 |
| 1990 | 200 |
| 1991 | 208 |
| 1992 | 199 |
| 1993 | 205 |
| 1994 | 173 |
| 1995 | 212 |
| 1996 | 191 |
| 1997 | 192 |
| 1998 | 205 |
| 1999 | 160 |
| 2000 | 187 |
| 2001 | 205 |
| 2002 | 220 |
| 2003 | 201 |
| 2004 | 214 |
| 2005 | 224 |
| 2006 | 239 |
| 2007 | 236 |
| 2008 | 279 |
| 2009 | 266 |
| 2010 | 285 |
| 2011 | 304 |
| 2012 | 324 |
| 2013 | 323 |
| 2014 | 326 |
| 2015 | 319 |
| 2016 | 314 |
| 2017 | 301 |
| 2018 | 284 |
| 2019 | 299 |
| 2020 | 261 |
| 2021 | 188 |
| 2022 | 167 |
| 2023 | 174 |
| 2024 | 195 |
| 2025 | 21 |