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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1961 | 1 |
| 1964 | 1 |
| 1971 | 3 |
| 1972 | 14 |
| 1973 | 28 |
| 1974 | 42 |
| 1975 | 38 |
| 1976 | 52 |
| 1977 | 37 |
| 1978 | 64 |
| 1979 | 74 |
| 1980 | 58 |
| 1981 | 63 |
| 1982 | 73 |
| 1983 | 58 |
| 1984 | 64 |
| 1985 | 58 |
| 1986 | 72 |
| 1987 | 86 |
| 1988 | 85 |
| 1989 | 60 |
| 1990 | 68 |
| 1991 | 53 |
| 1992 | 53 |
| 1993 | 66 |
| 1994 | 51 |
| 1995 | 61 |
| 1996 | 36 |
| 1997 | 43 |
| 1998 | 53 |
| 1999 | 42 |
| 2000 | 46 |
| 2001 | 43 |
| 2002 | 51 |
| 2003 | 50 |
| 2004 | 48 |
| 2005 | 61 |
| 2006 | 66 |
| 2007 | 96 |
| 2008 | 86 |
| 2009 | 96 |
| 2010 | 99 |
| 2011 | 121 |
| 2012 | 112 |
| 2013 | 127 |
| 2014 | 141 |
| 2015 | 161 |
| 2016 | 117 |
| 2017 | 119 |
| 2018 | 135 |
| 2019 | 127 |
| 2020 | 102 |
| 2021 | 99 |
| 2022 | 68 |
| 2023 | 54 |
| 2024 | 24 |