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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1961 | 1 |
| 1968 | 1 |
| 1972 | 1 |
| 1974 | 5 |
| 1975 | 8 |
| 1977 | 6 |
| 1978 | 4 |
| 1979 | 7 |
| 1980 | 12 |
| 1981 | 6 |
| 1982 | 3 |
| 1983 | 4 |
| 1984 | 7 |
| 1985 | 2 |
| 1986 | 7 |
| 1987 | 1 |
| 1988 | 5 |
| 1989 | 59 |
| 1990 | 175 |
| 1991 | 192 |
| 1992 | 152 |
| 1993 | 90 |
| 1994 | 71 |
| 1995 | 52 |
| 1996 | 44 |
| 1997 | 41 |
| 1998 | 57 |
| 1999 | 84 |
| 2000 | 65 |
| 2001 | 84 |
| 2002 | 67 |
| 2003 | 70 |
| 2004 | 48 |
| 2005 | 84 |
| 2006 | 116 |
| 2007 | 80 |
| 2008 | 103 |
| 2009 | 109 |
| 2010 | 96 |
| 2011 | 95 |
| 2012 | 128 |
| 2013 | 129 |
| 2014 | 109 |
| 2015 | 122 |
| 2016 | 130 |
| 2017 | 114 |
| 2018 | 127 |
| 2019 | 122 |
| 2020 | 129 |
| 2021 | 128 |
| 2022 | 139 |
| 2023 | 114 |
| 2024 | 177 |
| 2025 | 117 |