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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1961 | 14 |
| 1962 | 29 |
| 1963 | 29 |
| 1964 | 29 |
| 1965 | 32 |
| 1966 | 22 |
| 1967 | 37 |
| 1968 | 20 |
| 1969 | 47 |
| 1970 | 33 |
| 1971 | 36 |
| 1972 | 36 |
| 1973 | 35 |
| 1974 | 35 |
| 1975 | 34 |
| 1976 | 34 |
| 1977 | 42 |
| 1978 | 42 |
| 1979 | 60 |
| 1980 | 58 |
| 1981 | 56 |
| 1982 | 52 |
| 1983 | 66 |
| 1984 | 67 |
| 1985 | 56 |
| 1986 | 62 |
| 1987 | 58 |
| 1988 | 65 |
| 1989 | 62 |
| 1990 | 63 |
| 1991 | 74 |
| 1992 | 81 |
| 1993 | 80 |
| 1994 | 66 |
| 1995 | 48 |
| 1996 | 42 |
| 1997 | 37 |
| 1998 | 27 |
| 1999 | 33 |
| 2000 | 82 |
| 2001 | 82 |
| 2002 | 111 |
| 2003 | 105 |
| 2004 | 96 |
| 2005 | 109 |
| 2006 | 106 |
| 2007 | 98 |
| 2008 | 116 |
| 2009 | 101 |
| 2010 | 95 |
| 2011 | 98 |
| 2012 | 89 |
| 2013 | 113 |
| 2014 | 153 |
| 2015 | 87 |
| 2016 | 68 |
| 2017 | 68 |
| 2018 | 67 |
| 2019 | 68 |
| 2020 | 72 |
| 2021 | 73 |
| 2022 | 64 |
| 2023 | 77 |
| 2024 | 60 |
| 2025 | 21 |