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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1957 | 1 |
| 1961 | 16 |
| 1962 | 8 |
| 1963 | 14 |
| 1964 | 18 |
| 1965 | 13 |
| 1966 | 19 |
| 1967 | 20 |
| 1968 | 20 |
| 1969 | 23 |
| 1970 | 21 |
| 1971 | 21 |
| 1972 | 17 |
| 1973 | 22 |
| 1974 | 28 |
| 1975 | 38 |
| 1976 | 30 |
| 1977 | 29 |
| 1978 | 41 |
| 1979 | 48 |
| 1980 | 58 |
| 1981 | 41 |
| 1982 | 69 |
| 1983 | 54 |
| 1984 | 68 |
| 1985 | 56 |
| 1986 | 72 |
| 1987 | 74 |
| 1988 | 75 |
| 1989 | 115 |
| 1990 | 110 |
| 1991 | 98 |
| 1992 | 111 |
| 1993 | 121 |
| 1994 | 114 |
| 1995 | 162 |
| 1996 | 164 |
| 1997 | 148 |
| 1998 | 163 |
| 1999 | 156 |
| 2000 | 163 |
| 2001 | 148 |
| 2002 | 177 |
| 2003 | 198 |
| 2004 | 184 |
| 2005 | 172 |
| 2006 | 156 |
| 2007 | 191 |
| 2008 | 155 |
| 2009 | 182 |
| 2010 | 157 |
| 2011 | 183 |
| 2012 | 196 |
| 2013 | 191 |
| 2014 | 210 |
| 2015 | 204 |
| 2016 | 214 |
| 2017 | 224 |
| 2018 | 243 |
| 2019 | 222 |
| 2020 | 259 |
| 2021 | 269 |
| 2022 | 237 |
| 2023 | 210 |
| 2024 | 206 |
| 2025 | 82 |