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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1956 | 1 |
| 1975 | 4 |
| 1976 | 6 |
| 1977 | 7 |
| 1978 | 45 |
| 1979 | 28 |
| 1980 | 26 |
| 1981 | 45 |
| 1982 | 47 |
| 1983 | 75 |
| 1984 | 70 |
| 1985 | 82 |
| 1986 | 57 |
| 1987 | 91 |
| 1988 | 110 |
| 1989 | 87 |
| 1990 | 95 |
| 1991 | 157 |
| 1992 | 212 |
| 1993 | 181 |
| 1994 | 179 |
| 1995 | 170 |
| 1996 | 143 |
| 1997 | 218 |
| 1998 | 150 |
| 1999 | 140 |
| 2000 | 130 |
| 2001 | 142 |
| 2002 | 125 |
| 2003 | 131 |
| 2004 | 123 |
| 2005 | 151 |
| 2006 | 123 |
| 2007 | 112 |
| 2008 | 69 |
| 2009 | 65 |
| 2010 | 65 |
| 2011 | 65 |
| 2012 | 71 |
| 2013 | 56 |
| 2014 | 55 |
| 2015 | 62 |
| 2016 | 32 |
| 2017 | 19 |
| 2018 | 20 |
| 2019 | 13 |
| 2020 | 13 |
| 2021 | 8 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 23 |
| 2025 | 16 |