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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1972 | 2 |
| 1973 | 1 |
| 1974 | 1 |
| 1975 | 2 |
| 1977 | 1 |
| 1978 | 2 |
| 1979 | 2 |
| 1980 | 3 |
| 1981 | 3 |
| 1983 | 1 |
| 1984 | 2 |
| 1986 | 2 |
| 1987 | 1 |
| 1988 | 2 |
| 1989 | 3 |
| 1990 | 6 |
| 1991 | 27 |
| 1992 | 26 |
| 1993 | 46 |
| 1994 | 45 |
| 1995 | 67 |
| 1996 | 70 |
| 1997 | 55 |
| 1998 | 78 |
| 1999 | 73 |
| 2000 | 84 |
| 2001 | 89 |
| 2002 | 99 |
| 2003 | 96 |
| 2004 | 103 |
| 2005 | 116 |
| 2006 | 124 |
| 2007 | 114 |
| 2008 | 98 |
| 2009 | 88 |
| 2010 | 99 |
| 2011 | 110 |
| 2012 | 96 |
| 2013 | 103 |
| 2014 | 106 |
| 2015 | 115 |
| 2016 | 90 |
| 2017 | 99 |
| 2018 | 93 |
| 2019 | 77 |
| 2020 | 84 |
| 2021 | 67 |
| 2022 | 31 |
| 2023 | 26 |
| 2024 | 35 |