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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1952 | 1 |
| 1953 | 2 |
| 1954 | 1 |
| 1955 | 1 |
| 1956 | 9 |
| 1957 | 4 |
| 1958 | 1 |
| 1959 | 3 |
| 1960 | 2 |
| 1961 | 5 |
| 1962 | 4 |
| 1965 | 17 |
| 1966 | 21 |
| 1967 | 36 |
| 1968 | 50 |
| 1969 | 56 |
| 1970 | 57 |
| 1971 | 64 |
| 1972 | 67 |
| 1973 | 52 |
| 1974 | 76 |
| 1975 | 61 |
| 1976 | 46 |
| 1977 | 43 |
| 1978 | 56 |
| 1979 | 52 |
| 1980 | 60 |
| 1981 | 58 |
| 1982 | 50 |
| 1983 | 61 |
| 1984 | 62 |
| 1985 | 85 |
| 1986 | 70 |
| 1987 | 54 |
| 1988 | 59 |
| 1989 | 59 |
| 1990 | 102 |
| 1991 | 86 |
| 1992 | 52 |
| 1993 | 59 |
| 1994 | 77 |
| 1995 | 91 |
| 1996 | 64 |
| 1997 | 89 |
| 1998 | 91 |
| 1999 | 94 |
| 2000 | 90 |
| 2001 | 81 |
| 2002 | 87 |
| 2003 | 109 |
| 2004 | 112 |
| 2005 | 133 |
| 2006 | 138 |
| 2007 | 146 |
| 2008 | 119 |
| 2009 | 156 |
| 2010 | 151 |
| 2011 | 130 |
| 2012 | 133 |
| 2013 | 136 |
| 2014 | 125 |
| 2015 | 119 |
| 2016 | 94 |
| 2017 | 94 |
| 2018 | 104 |
| 2019 | 84 |
| 2020 | 76 |
| 2021 | 47 |
| 2022 | 46 |
| 2023 | 42 |
| 2024 | 17 |