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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1951 | 1 |
| 1952 | 3 |
| 1953 | 3 |
| 1954 | 2 |
| 1955 | 5 |
| 1956 | 6 |
| 1957 | 2 |
| 1958 | 3 |
| 1965 | 5 |
| 1966 | 14 |
| 1967 | 11 |
| 1968 | 16 |
| 1969 | 21 |
| 1970 | 20 |
| 1971 | 27 |
| 1972 | 31 |
| 1973 | 40 |
| 1974 | 42 |
| 1975 | 29 |
| 1976 | 39 |
| 1977 | 50 |
| 1978 | 38 |
| 1979 | 37 |
| 1980 | 44 |
| 1981 | 50 |
| 1982 | 47 |
| 1983 | 67 |
| 1984 | 78 |
| 1985 | 83 |
| 1986 | 93 |
| 1987 | 75 |
| 1988 | 89 |
| 1989 | 70 |
| 1990 | 105 |
| 1991 | 92 |
| 1992 | 71 |
| 1993 | 90 |
| 1994 | 52 |
| 1995 | 84 |
| 1996 | 63 |
| 1997 | 98 |
| 1998 | 83 |
| 1999 | 77 |
| 2000 | 87 |
| 2001 | 101 |
| 2002 | 98 |
| 2003 | 119 |
| 2004 | 125 |
| 2005 | 104 |
| 2006 | 106 |
| 2007 | 139 |
| 2008 | 155 |
| 2009 | 153 |
| 2010 | 148 |
| 2011 | 169 |
| 2012 | 181 |
| 2013 | 179 |
| 2014 | 156 |
| 2015 | 143 |
| 2016 | 179 |
| 2017 | 176 |
| 2018 | 169 |
| 2019 | 189 |
| 2020 | 164 |
| 2021 | 119 |
| 2022 | 84 |
| 2023 | 87 |
| 2024 | 140 |
| 2025 | 2 |