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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 40 |
| 1948 | 23 |
| 1949 | 19 |
| 1950 | 20 |
| 1951 | 55 |
| 1952 | 53 |
| 1953 | 55 |
| 1954 | 54 |
| 1955 | 49 |
| 1956 | 41 |
| 1957 | 54 |
| 1958 | 45 |
| 1959 | 40 |
| 1960 | 39 |
| 1961 | 30 |
| 1962 | 32 |
| 1963 | 34 |
| 1964 | 37 |
| 1965 | 59 |
| 1966 | 49 |
| 1967 | 48 |
| 1968 | 66 |
| 1969 | 55 |
| 1970 | 81 |
| 1971 | 78 |
| 1972 | 70 |
| 1973 | 57 |
| 1974 | 85 |
| 1975 | 87 |
| 1976 | 79 |
| 1977 | 89 |
| 1978 | 86 |
| 1979 | 97 |
| 1980 | 80 |
| 1981 | 70 |
| 1982 | 81 |
| 1983 | 84 |
| 1984 | 89 |
| 1985 | 94 |
| 1986 | 119 |
| 1987 | 118 |
| 1988 | 107 |
| 1989 | 112 |
| 1990 | 154 |
| 1991 | 149 |
| 1992 | 158 |
| 1993 | 135 |
| 1994 | 140 |
| 1995 | 135 |
| 1996 | 117 |
| 1997 | 125 |
| 1998 | 101 |
| 1999 | 71 |
| 2000 | 87 |
| 2001 | 89 |
| 2002 | 82 |
| 2003 | 84 |
| 2004 | 83 |
| 2005 | 81 |
| 2006 | 75 |
| 2007 | 75 |
| 2008 | 75 |
| 2009 | 95 |
| 2010 | 99 |
| 2011 | 86 |
| 2012 | 100 |
| 2013 | 101 |
| 2014 | 134 |
| 2015 | 144 |
| 2016 | 115 |
| 2017 | 133 |
| 2018 | 132 |
| 2019 | 116 |
| 2020 | 120 |
| 2021 | 125 |
| 2022 | 167 |
| 2023 | 171 |
| 2024 | 82 |