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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1952 | 1 |
| 1955 | 1 |
| 1956 | 1 |
| 1957 | 1 |
| 1965 | 2 |
| 1966 | 12 |
| 1967 | 31 |
| 1968 | 41 |
| 1969 | 42 |
| 1970 | 36 |
| 1971 | 46 |
| 1972 | 41 |
| 1973 | 51 |
| 1974 | 49 |
| 1975 | 28 |
| 1976 | 27 |
| 1977 | 36 |
| 1978 | 33 |
| 1979 | 49 |
| 1980 | 32 |
| 1981 | 29 |
| 1982 | 41 |
| 1983 | 46 |
| 1984 | 47 |
| 1985 | 36 |
| 1986 | 47 |
| 1987 | 62 |
| 1988 | 94 |
| 1989 | 64 |
| 1990 | 90 |
| 1991 | 66 |
| 1992 | 58 |
| 1993 | 72 |
| 1994 | 60 |
| 1995 | 77 |
| 1996 | 85 |
| 1997 | 73 |
| 1998 | 97 |
| 1999 | 56 |
| 2000 | 86 |
| 2001 | 85 |
| 2002 | 118 |
| 2003 | 127 |
| 2004 | 111 |
| 2005 | 112 |
| 2006 | 127 |
| 2007 | 154 |
| 2008 | 136 |
| 2009 | 161 |
| 2010 | 168 |
| 2011 | 173 |
| 2012 | 176 |
| 2013 | 178 |
| 2014 | 186 |
| 2015 | 174 |
| 2016 | 182 |
| 2017 | 179 |
| 2018 | 183 |
| 2019 | 179 |
| 2020 | 149 |
| 2021 | 79 |
| 2022 | 9 |
| 2023 | 5 |
| 2024 | 1 |