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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1958 | 2 |
| 1959 | 1 |
| 1962 | 3 |
| 1963 | 3 |
| 1965 | 1 |
| 1969 | 1 |
| 1970 | 1 |
| 1971 | 2 |
| 1972 | 1 |
| 1973 | 2 |
| 1974 | 2 |
| 1976 | 1 |
| 1977 | 1 |
| 1978 | 1 |
| 1980 | 1 |
| 1981 | 2 |
| 1982 | 1 |
| 1983 | 2 |
| 1984 | 2 |
| 1985 | 4 |
| 1986 | 4 |
| 1987 | 6 |
| 1988 | 3 |
| 1989 | 1 |
| 1990 | 9 |
| 1991 | 8 |
| 1992 | 7 |
| 1993 | 11 |
| 1994 | 9 |
| 1995 | 12 |
| 1996 | 16 |
| 1997 | 16 |
| 1998 | 16 |
| 1999 | 23 |
| 2000 | 41 |
| 2001 | 42 |
| 2002 | 54 |
| 2003 | 45 |
| 2004 | 62 |
| 2005 | 80 |
| 2006 | 107 |
| 2007 | 114 |
| 2008 | 105 |
| 2009 | 107 |
| 2010 | 114 |
| 2011 | 120 |
| 2012 | 122 |
| 2013 | 148 |
| 2014 | 161 |
| 2015 | 146 |
| 2016 | 139 |
| 2017 | 120 |
| 2018 | 121 |
| 2019 | 125 |
| 2020 | 155 |
| 2021 | 192 |
| 2022 | 175 |
| 2023 | 62 |