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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 3 |
| 1965 | 12 |
| 1966 | 11 |
| 1967 | 14 |
| 1968 | 22 |
| 1969 | 27 |
| 1970 | 27 |
| 1971 | 40 |
| 1972 | 31 |
| 1973 | 24 |
| 1974 | 38 |
| 1975 | 32 |
| 1976 | 42 |
| 1977 | 33 |
| 1978 | 41 |
| 1979 | 53 |
| 1980 | 73 |
| 1981 | 53 |
| 1982 | 65 |
| 1983 | 52 |
| 1984 | 82 |
| 1985 | 72 |
| 1986 | 65 |
| 1987 | 89 |
| 1988 | 77 |
| 1989 | 78 |
| 1990 | 81 |
| 1991 | 90 |
| 1992 | 80 |
| 1993 | 84 |
| 1994 | 88 |
| 1995 | 90 |
| 1996 | 97 |
| 1997 | 91 |
| 1998 | 120 |
| 1999 | 83 |
| 2000 | 98 |
| 2001 | 105 |
| 2002 | 85 |
| 2003 | 78 |
| 2004 | 106 |
| 2005 | 140 |
| 2006 | 121 |
| 2007 | 146 |
| 2008 | 199 |
| 2009 | 162 |
| 2010 | 180 |
| 2011 | 211 |
| 2012 | 169 |
| 2013 | 171 |
| 2014 | 194 |
| 2015 | 175 |
| 2016 | 153 |
| 2017 | 188 |
| 2018 | 169 |
| 2019 | 161 |
| 2020 | 126 |
| 2021 | 93 |
| 2022 | 8 |
| 2023 | 2 |
| 2024 | 0 |