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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1958 | 44 |
| 1959 | 33 |
| 1960 | 45 |
| 1961 | 87 |
| 1962 | 90 |
| 1963 | 147 |
| 1964 | 127 |
| 1965 | 173 |
| 1966 | 190 |
| 1967 | 148 |
| 1968 | 139 |
| 1969 | 220 |
| 1970 | 216 |
| 1971 | 228 |
| 1972 | 297 |
| 1973 | 177 |
| 1974 | 171 |
| 1975 | 281 |
| 1976 | 198 |
| 1977 | 193 |
| 1978 | 223 |
| 1979 | 216 |
| 1980 | 258 |
| 1981 | 239 |
| 1982 | 207 |
| 1983 | 295 |
| 1984 | 262 |
| 1985 | 226 |
| 1986 | 200 |
| 1987 | 200 |
| 1988 | 212 |
| 1989 | 343 |
| 1990 | 214 |
| 1991 | 237 |
| 1992 | 193 |
| 1993 | 196 |
| 1994 | 196 |
| 1995 | 228 |
| 1996 | 244 |
| 1997 | 238 |
| 1998 | 188 |
| 1999 | 207 |
| 2000 | 233 |
| 2001 | 218 |
| 2002 | 218 |
| 2003 | 238 |
| 2004 | 206 |
| 2005 | 172 |
| 2006 | 168 |
| 2007 | 183 |
| 2008 | 173 |
| 2009 | 150 |
| 2010 | 227 |
| 2011 | 216 |
| 2012 | 200 |
| 2013 | 174 |
| 2014 | 206 |
| 2015 | 173 |
| 2016 | 197 |
| 2017 | 142 |
| 2018 | 198 |
| 2019 | 174 |
| 2020 | 171 |
| 2021 | 166 |
| 2022 | 148 |
| 2023 | 125 |
| 2024 | 65 |