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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1968 | 1 |
| 1969 | 1 |
| 1970 | 1 |
| 1974 | 2 |
| 1975 | 6 |
| 1976 | 2 |
| 1977 | 9 |
| 1978 | 8 |
| 1979 | 21 |
| 1980 | 17 |
| 1981 | 25 |
| 1982 | 24 |
| 1983 | 28 |
| 1984 | 29 |
| 1985 | 25 |
| 1986 | 42 |
| 1987 | 48 |
| 1988 | 41 |
| 1989 | 53 |
| 1990 | 45 |
| 1991 | 45 |
| 1992 | 64 |
| 1993 | 52 |
| 1994 | 55 |
| 1995 | 53 |
| 1996 | 72 |
| 1997 | 67 |
| 1998 | 81 |
| 1999 | 81 |
| 2000 | 76 |
| 2001 | 77 |
| 2002 | 83 |
| 2003 | 77 |
| 2004 | 79 |
| 2005 | 73 |
| 2006 | 78 |
| 2007 | 67 |
| 2008 | 87 |
| 2009 | 80 |
| 2010 | 84 |
| 2011 | 97 |
| 2012 | 104 |
| 2013 | 87 |
| 2014 | 103 |
| 2015 | 117 |
| 2016 | 142 |
| 2017 | 122 |
| 2018 | 127 |
| 2019 | 129 |
| 2020 | 126 |
| 2021 | 155 |
| 2022 | 151 |
| 2023 | 121 |
| 2024 | 156 |
| 2025 | 80 |
| 2026 | 1 |