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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1948 | 1 |
| 1949 | 1 |
| 1965 | 7 |
| 1966 | 28 |
| 1967 | 42 |
| 1968 | 55 |
| 1969 | 62 |
| 1970 | 73 |
| 1971 | 72 |
| 1972 | 93 |
| 1973 | 107 |
| 1974 | 100 |
| 1975 | 96 |
| 1976 | 106 |
| 1977 | 83 |
| 1978 | 93 |
| 1979 | 87 |
| 1980 | 92 |
| 1981 | 95 |
| 1982 | 92 |
| 1983 | 108 |
| 1984 | 92 |
| 1985 | 132 |
| 1986 | 101 |
| 1987 | 87 |
| 1988 | 72 |
| 1989 | 100 |
| 1990 | 81 |
| 1991 | 80 |
| 1992 | 75 |
| 1993 | 60 |
| 1994 | 68 |
| 1995 | 70 |
| 1996 | 72 |
| 1997 | 60 |
| 1998 | 76 |
| 1999 | 84 |
| 2000 | 60 |
| 2001 | 62 |
| 2002 | 53 |
| 2003 | 52 |
| 2004 | 59 |
| 2005 | 50 |
| 2006 | 48 |
| 2007 | 51 |
| 2008 | 57 |
| 2009 | 41 |
| 2010 | 49 |
| 2011 | 60 |
| 2012 | 67 |
| 2013 | 65 |
| 2014 | 54 |
| 2015 | 50 |
| 2016 | 50 |
| 2017 | 41 |
| 2018 | 35 |
| 2019 | 31 |
| 2020 | 36 |
| 2021 | 32 |
| 2022 | 31 |
| 2023 | 17 |
| 2024 | 21 |