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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1965 | 6 |
| 1966 | 4 |
| 1967 | 10 |
| 1968 | 13 |
| 1969 | 20 |
| 1970 | 15 |
| 1971 | 17 |
| 1972 | 7 |
| 1973 | 12 |
| 1974 | 5 |
| 1975 | 15 |
| 1976 | 22 |
| 1977 | 23 |
| 1978 | 19 |
| 1979 | 16 |
| 1980 | 17 |
| 1981 | 19 |
| 1982 | 21 |
| 1983 | 23 |
| 1984 | 26 |
| 1985 | 32 |
| 1986 | 35 |
| 1987 | 58 |
| 1988 | 65 |
| 1989 | 67 |
| 1990 | 88 |
| 1991 | 98 |
| 1992 | 115 |
| 1993 | 92 |
| 1994 | 84 |
| 1995 | 102 |
| 1996 | 90 |
| 1997 | 96 |
| 1998 | 103 |
| 1999 | 122 |
| 2000 | 145 |
| 2001 | 120 |
| 2002 | 150 |
| 2003 | 136 |
| 2004 | 144 |
| 2005 | 146 |
| 2006 | 151 |
| 2007 | 155 |
| 2008 | 143 |
| 2009 | 180 |
| 2010 | 188 |
| 2011 | 165 |
| 2012 | 150 |
| 2013 | 153 |
| 2014 | 217 |
| 2015 | 224 |
| 2016 | 167 |
| 2017 | 185 |
| 2018 | 162 |
| 2019 | 189 |
| 2020 | 149 |
| 2021 | 77 |
| 2022 | 11 |
| 2024 | 9 |