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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 9 |
| 1967 | 8 |
| 1968 | 9 |
| 1969 | 40 |
| 1970 | 66 |
| 1971 | 82 |
| 1972 | 166 |
| 1973 | 135 |
| 1974 | 123 |
| 1975 | 108 |
| 1976 | 117 |
| 1977 | 132 |
| 1978 | 131 |
| 1979 | 145 |
| 1980 | 154 |
| 1981 | 127 |
| 1982 | 76 |
| 1983 | 109 |
| 1984 | 105 |
| 1985 | 104 |
| 1986 | 82 |
| 1987 | 87 |
| 1988 | 86 |
| 1989 | 63 |
| 1990 | 68 |
| 1991 | 94 |
| 1992 | 92 |
| 1993 | 103 |
| 1994 | 149 |
| 1995 | 169 |
| 1996 | 203 |
| 1997 | 223 |
| 1998 | 292 |
| 1999 | 292 |
| 2000 | 415 |
| 2001 | 369 |
| 2002 | 332 |
| 2003 | 347 |
| 2004 | 470 |
| 2005 | 457 |
| 2006 | 561 |
| 2007 | 849 |
| 2008 | 987 |
| 2009 | 1029 |
| 2010 | 970 |
| 2011 | 1108 |
| 2012 | 964 |
| 2013 | 1008 |
| 2014 | 735 |
| 2015 | 740 |
| 2016 | 739 |
| 2017 | 578 |
| 2018 | 523 |
| 2019 | 545 |
| 2020 | 501 |
| 2021 | 404 |
| 2022 | 50 |
| 2023 | 18 |
| 2024 | 10 |