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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1948 | 21 |
| 1949 | 2 |
| 1951 | 24 |
| 1952 | 62 |
| 1953 | 80 |
| 1954 | 76 |
| 1955 | 83 |
| 1956 | 87 |
| 1957 | 78 |
| 1958 | 71 |
| 1959 | 79 |
| 1960 | 99 |
| 1961 | 83 |
| 1962 | 67 |
| 1963 | 2 |
| 1964 | 15 |
| 1965 | 121 |
| 1966 | 204 |
| 1967 | 171 |
| 1968 | 130 |
| 1969 | 159 |
| 1970 | 172 |
| 1971 | 164 |
| 1972 | 153 |
| 1973 | 161 |
| 1974 | 148 |
| 1975 | 153 |
| 1976 | 166 |
| 1977 | 140 |
| 1978 | 155 |
| 1979 | 146 |
| 1980 | 138 |
| 1981 | 121 |
| 1982 | 120 |
| 1983 | 143 |
| 1984 | 129 |
| 1985 | 128 |
| 1986 | 162 |
| 1987 | 140 |
| 1988 | 173 |
| 1989 | 180 |
| 1990 | 164 |
| 1991 | 152 |
| 1992 | 169 |
| 1993 | 166 |
| 1994 | 154 |
| 1995 | 154 |
| 1996 | 181 |
| 1997 | 166 |
| 1998 | 130 |
| 1999 | 107 |
| 2000 | 98 |
| 2001 | 105 |
| 2002 | 91 |
| 2003 | 75 |
| 2004 | 90 |
| 2005 | 78 |
| 2006 | 74 |
| 2007 | 68 |
| 2008 | 59 |
| 2009 | 61 |
| 2010 | 52 |
| 2011 | 52 |
| 2012 | 33 |
| 2013 | 63 |
| 2014 | 51 |
| 2015 | 61 |
| 2016 | 68 |
| 2017 | 44 |
| 2018 | 52 |
| 2019 | 36 |
| 2020 | 39 |
| 2021 | 31 |
| 2022 | 23 |
| 2023 | 25 |
| 2024 | 14 |