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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 2 |
| 1953 | 1 |
| 1954 | 1 |
| 1955 | 2 |
| 1957 | 1 |
| 1958 | 2 |
| 1964 | 1 |
| 1965 | 2 |
| 1966 | 9 |
| 1967 | 6 |
| 1968 | 22 |
| 1969 | 28 |
| 1970 | 25 |
| 1971 | 36 |
| 1972 | 33 |
| 1973 | 53 |
| 1974 | 80 |
| 1975 | 47 |
| 1976 | 24 |
| 1977 | 38 |
| 1978 | 45 |
| 1979 | 45 |
| 1980 | 41 |
| 1981 | 41 |
| 1982 | 58 |
| 1983 | 49 |
| 1984 | 51 |
| 1985 | 50 |
| 1986 | 44 |
| 1987 | 46 |
| 1988 | 61 |
| 1989 | 68 |
| 1990 | 59 |
| 1991 | 69 |
| 1992 | 87 |
| 1993 | 91 |
| 1994 | 92 |
| 1995 | 120 |
| 1996 | 95 |
| 1997 | 99 |
| 1998 | 102 |
| 1999 | 100 |
| 2000 | 127 |
| 2001 | 142 |
| 2002 | 173 |
| 2003 | 183 |
| 2004 | 199 |
| 2005 | 200 |
| 2006 | 164 |
| 2007 | 149 |
| 2008 | 181 |
| 2009 | 174 |
| 2010 | 152 |
| 2011 | 185 |
| 2012 | 220 |
| 2013 | 231 |
| 2014 | 203 |
| 2015 | 215 |
| 2016 | 190 |
| 2017 | 131 |
| 2018 | 162 |
| 2019 | 161 |
| 2020 | 135 |
| 2021 | 95 |
| 2022 | 13 |
| 2023 | 2 |
| 2024 | 3 |