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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1953 | 1 |
| 1954 | 2 |
| 1955 | 3 |
| 1956 | 4 |
| 1957 | 9 |
| 1958 | 6 |
| 1959 | 3 |
| 1960 | 10 |
| 1961 | 20 |
| 1962 | 9 |
| 1963 | 17 |
| 1964 | 51 |
| 1965 | 40 |
| 1966 | 17 |
| 1967 | 22 |
| 1968 | 38 |
| 1969 | 34 |
| 1970 | 66 |
| 1971 | 68 |
| 1972 | 78 |
| 1973 | 50 |
| 1974 | 67 |
| 1975 | 49 |
| 1976 | 47 |
| 1977 | 82 |
| 1978 | 47 |
| 1979 | 58 |
| 1980 | 73 |
| 1981 | 66 |
| 1982 | 92 |
| 1983 | 87 |
| 1984 | 90 |
| 1985 | 127 |
| 1986 | 132 |
| 1987 | 149 |
| 1988 | 161 |
| 1989 | 113 |
| 1990 | 51 |
| 1991 | 57 |
| 1992 | 58 |
| 1993 | 59 |
| 1994 | 49 |
| 1995 | 56 |
| 1996 | 67 |
| 1997 | 44 |
| 1998 | 65 |
| 1999 | 56 |
| 2000 | 65 |
| 2001 | 65 |
| 2002 | 86 |
| 2003 | 62 |
| 2004 | 78 |
| 2005 | 81 |
| 2006 | 86 |
| 2007 | 89 |
| 2008 | 91 |
| 2009 | 93 |
| 2010 | 89 |
| 2011 | 107 |
| 2012 | 91 |
| 2013 | 113 |
| 2014 | 133 |
| 2015 | 136 |
| 2016 | 131 |
| 2017 | 117 |
| 2018 | 99 |
| 2019 | 104 |
| 2020 | 93 |
| 2021 | 91 |
| 2022 | 72 |
| 2023 | 73 |
| 2024 | 28 |