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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 2 |
| 1964 | 3 |
| 1965 | 9 |
| 1966 | 22 |
| 1967 | 32 |
| 1968 | 45 |
| 1969 | 59 |
| 1970 | 63 |
| 1971 | 46 |
| 1972 | 56 |
| 1973 | 66 |
| 1974 | 68 |
| 1975 | 48 |
| 1976 | 42 |
| 1977 | 45 |
| 1978 | 44 |
| 1979 | 51 |
| 1980 | 43 |
| 1981 | 56 |
| 1982 | 50 |
| 1983 | 50 |
| 1984 | 55 |
| 1985 | 59 |
| 1986 | 54 |
| 1987 | 64 |
| 1988 | 72 |
| 1989 | 76 |
| 1990 | 75 |
| 1991 | 64 |
| 1992 | 82 |
| 1993 | 62 |
| 1994 | 66 |
| 1995 | 94 |
| 1996 | 73 |
| 1997 | 84 |
| 1998 | 94 |
| 1999 | 99 |
| 2000 | 96 |
| 2001 | 88 |
| 2002 | 111 |
| 2003 | 140 |
| 2004 | 138 |
| 2005 | 131 |
| 2006 | 131 |
| 2007 | 153 |
| 2008 | 161 |
| 2009 | 126 |
| 2010 | 169 |
| 2011 | 166 |
| 2012 | 173 |
| 2013 | 227 |
| 2014 | 221 |
| 2015 | 229 |
| 2016 | 219 |
| 2017 | 207 |
| 2018 | 197 |
| 2019 | 156 |
| 2020 | 231 |
| 2021 | 240 |
| 2022 | 204 |
| 2023 | 176 |
| 2024 | 95 |