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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1952 | 1 |
| 1955 | 2 |
| 1956 | 2 |
| 1957 | 1 |
| 1965 | 5 |
| 1966 | 8 |
| 1967 | 21 |
| 1968 | 23 |
| 1969 | 32 |
| 1970 | 41 |
| 1971 | 41 |
| 1972 | 73 |
| 1973 | 80 |
| 1974 | 79 |
| 1975 | 73 |
| 1976 | 67 |
| 1977 | 43 |
| 1978 | 41 |
| 1979 | 39 |
| 1980 | 37 |
| 1981 | 45 |
| 1982 | 39 |
| 1983 | 51 |
| 1984 | 67 |
| 1985 | 45 |
| 1986 | 76 |
| 1987 | 56 |
| 1988 | 63 |
| 1989 | 84 |
| 1990 | 91 |
| 1991 | 73 |
| 1992 | 71 |
| 1993 | 96 |
| 1994 | 89 |
| 1995 | 61 |
| 1996 | 79 |
| 1997 | 56 |
| 1998 | 75 |
| 1999 | 68 |
| 2000 | 69 |
| 2001 | 63 |
| 2002 | 60 |
| 2003 | 56 |
| 2004 | 60 |
| 2005 | 68 |
| 2006 | 77 |
| 2007 | 81 |
| 2008 | 76 |
| 2009 | 99 |
| 2010 | 69 |
| 2011 | 69 |
| 2012 | 92 |
| 2013 | 98 |
| 2014 | 96 |
| 2015 | 77 |
| 2016 | 81 |
| 2017 | 82 |
| 2018 | 65 |
| 2019 | 69 |
| 2020 | 84 |
| 2021 | 45 |
| 2022 | 8 |
| 2024 | 1 |