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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1959 | 1 |
| 1961 | 3 |
| 1975 | 1 |
| 1976 | 1 |
| 1978 | 2 |
| 1979 | 8 |
| 1980 | 21 |
| 1981 | 7 |
| 1982 | 16 |
| 1983 | 24 |
| 1984 | 8 |
| 1985 | 7 |
| 1986 | 14 |
| 1987 | 13 |
| 1988 | 21 |
| 1989 | 21 |
| 1990 | 39 |
| 1991 | 33 |
| 1992 | 49 |
| 1993 | 40 |
| 1994 | 38 |
| 1995 | 63 |
| 1996 | 72 |
| 1997 | 59 |
| 1998 | 79 |
| 1999 | 101 |
| 2000 | 85 |
| 2001 | 148 |
| 2002 | 126 |
| 2003 | 130 |
| 2004 | 151 |
| 2005 | 111 |
| 2006 | 150 |
| 2007 | 145 |
| 2008 | 144 |
| 2009 | 137 |
| 2010 | 158 |
| 2011 | 192 |
| 2012 | 234 |
| 2013 | 221 |
| 2014 | 268 |
| 2015 | 223 |
| 2016 | 182 |
| 2017 | 151 |
| 2018 | 163 |
| 2019 | 155 |
| 2020 | 138 |
| 2021 | 62 |
| 2022 | 9 |
| 2023 | 6 |
| 2024 | 110 |
| 2025 | 104 |