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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 3 |
| 1954 | 4 |
| 1955 | 8 |
| 1956 | 3 |
| 1957 | 4 |
| 1958 | 2 |
| 1959 | 5 |
| 1963 | 1 |
| 1964 | 8 |
| 1965 | 51 |
| 1966 | 60 |
| 1967 | 114 |
| 1968 | 134 |
| 1969 | 119 |
| 1970 | 144 |
| 1971 | 162 |
| 1972 | 196 |
| 1973 | 221 |
| 1974 | 243 |
| 1975 | 228 |
| 1976 | 212 |
| 1977 | 204 |
| 1978 | 207 |
| 1979 | 208 |
| 1980 | 198 |
| 1981 | 196 |
| 1982 | 175 |
| 1983 | 196 |
| 1984 | 190 |
| 1985 | 157 |
| 1986 | 150 |
| 1987 | 133 |
| 1988 | 133 |
| 1989 | 131 |
| 1990 | 144 |
| 1991 | 165 |
| 1992 | 142 |
| 1993 | 148 |
| 1994 | 145 |
| 1995 | 159 |
| 1996 | 143 |
| 1997 | 135 |
| 1998 | 116 |
| 1999 | 126 |
| 2000 | 161 |
| 2001 | 168 |
| 2002 | 231 |
| 2003 | 261 |
| 2004 | 171 |
| 2005 | 174 |
| 2006 | 187 |
| 2007 | 224 |
| 2008 | 241 |
| 2009 | 217 |
| 2010 | 263 |
| 2011 | 265 |
| 2012 | 299 |
| 2013 | 312 |
| 2014 | 289 |
| 2015 | 286 |
| 2016 | 280 |
| 2017 | 264 |
| 2018 | 264 |
| 2019 | 253 |
| 2020 | 236 |
| 2021 | 160 |
| 2022 | 108 |
| 2023 | 79 |
| 2024 | 49 |