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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1961 | 1 |
| 1964 | 1 |
| 1970 | 3 |
| 1971 | 39 |
| 1972 | 46 |
| 1973 | 49 |
| 1974 | 74 |
| 1975 | 59 |
| 1976 | 66 |
| 1977 | 61 |
| 1978 | 83 |
| 1979 | 92 |
| 1980 | 72 |
| 1981 | 75 |
| 1982 | 93 |
| 1983 | 75 |
| 1984 | 76 |
| 1985 | 80 |
| 1986 | 106 |
| 1987 | 102 |
| 1988 | 107 |
| 1989 | 89 |
| 1990 | 96 |
| 1991 | 93 |
| 1992 | 90 |
| 1993 | 95 |
| 1994 | 82 |
| 1995 | 103 |
| 1996 | 78 |
| 1997 | 75 |
| 1998 | 89 |
| 1999 | 89 |
| 2000 | 93 |
| 2001 | 103 |
| 2002 | 105 |
| 2003 | 136 |
| 2004 | 111 |
| 2005 | 124 |
| 2006 | 145 |
| 2007 | 186 |
| 2008 | 155 |
| 2009 | 179 |
| 2010 | 162 |
| 2011 | 204 |
| 2012 | 196 |
| 2013 | 208 |
| 2014 | 213 |
| 2015 | 229 |
| 2016 | 182 |
| 2017 | 185 |
| 2018 | 205 |
| 2019 | 179 |
| 2020 | 160 |
| 2021 | 196 |
| 2022 | 184 |
| 2023 | 138 |
| 2024 | 45 |