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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1949 | 1 |
| 1951 | 3 |
| 1952 | 2 |
| 1953 | 1 |
| 1955 | 1 |
| 1957 | 1 |
| 1958 | 5 |
| 1961 | 2 |
| 1962 | 3 |
| 1963 | 2 |
| 1964 | 5 |
| 1965 | 3 |
| 1979 | 30 |
| 1980 | 114 |
| 1981 | 154 |
| 1982 | 136 |
| 1983 | 178 |
| 1984 | 172 |
| 1985 | 170 |
| 1986 | 125 |
| 1987 | 145 |
| 1988 | 193 |
| 1989 | 206 |
| 1990 | 495 |
| 1991 | 763 |
| 1992 | 1051 |
| 1993 | 1193 |
| 1994 | 1499 |
| 1995 | 1838 |
| 1996 | 1548 |
| 1997 | 1744 |
| 1998 | 1739 |
| 1999 | 1897 |
| 2000 | 2135 |
| 2001 | 2151 |
| 2002 | 2318 |
| 2003 | 2482 |
| 2004 | 2684 |
| 2005 | 2975 |
| 2006 | 2882 |
| 2007 | 2928 |
| 2008 | 3004 |
| 2009 | 3197 |
| 2010 | 3184 |
| 2011 | 3592 |
| 2012 | 3686 |
| 2013 | 3884 |
| 2014 | 4047 |
| 2015 | 3934 |
| 2016 | 3737 |
| 2017 | 3563 |
| 2018 | 3303 |
| 2019 | 3088 |
| 2020 | 2780 |
| 2021 | 2375 |
| 2022 | 1959 |
| 2023 | 1552 |
| 2024 | 568 |