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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1950 | 1 |
| 1952 | 1 |
| 1954 | 2 |
| 1957 | 1 |
| 1960 | 4 |
| 1961 | 3 |
| 1962 | 2 |
| 1963 | 1 |
| 1964 | 2 |
| 1965 | 3 |
| 1975 | 10 |
| 1976 | 16 |
| 1977 | 23 |
| 1978 | 22 |
| 1979 | 28 |
| 1980 | 19 |
| 1981 | 29 |
| 1982 | 34 |
| 1983 | 46 |
| 1984 | 46 |
| 1985 | 74 |
| 1986 | 87 |
| 1987 | 82 |
| 1988 | 107 |
| 1989 | 94 |
| 1990 | 86 |
| 1991 | 96 |
| 1992 | 96 |
| 1993 | 119 |
| 1994 | 113 |
| 1995 | 121 |
| 1996 | 118 |
| 1997 | 124 |
| 1998 | 145 |
| 1999 | 123 |
| 2000 | 128 |
| 2001 | 113 |
| 2002 | 105 |
| 2003 | 113 |
| 2004 | 99 |
| 2005 | 111 |
| 2006 | 105 |
| 2007 | 129 |
| 2008 | 102 |
| 2009 | 104 |
| 2010 | 90 |
| 2011 | 97 |
| 2012 | 93 |
| 2013 | 75 |
| 2014 | 80 |
| 2015 | 74 |
| 2016 | 74 |
| 2017 | 56 |
| 2018 | 56 |
| 2019 | 52 |
| 2020 | 62 |
| 2021 | 36 |
| 2022 | 28 |
| 2023 | 17 |
| 2024 | 3 |