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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1954 | 2 |
| 1955 | 2 |
| 1956 | 1 |
| 1958 | 2 |
| 1959 | 1 |
| 1965 | 1 |
| 1966 | 4 |
| 1967 | 9 |
| 1968 | 1 |
| 1969 | 3 |
| 1970 | 4 |
| 1971 | 5 |
| 1972 | 9 |
| 1973 | 14 |
| 1974 | 18 |
| 1975 | 31 |
| 1976 | 17 |
| 1977 | 52 |
| 1978 | 41 |
| 1979 | 48 |
| 1980 | 37 |
| 1981 | 54 |
| 1982 | 41 |
| 1983 | 41 |
| 1984 | 63 |
| 1985 | 62 |
| 1986 | 51 |
| 1987 | 50 |
| 1988 | 32 |
| 1989 | 52 |
| 1990 | 44 |
| 1991 | 50 |
| 1992 | 44 |
| 1993 | 73 |
| 1994 | 73 |
| 1995 | 105 |
| 1996 | 108 |
| 1997 | 150 |
| 1998 | 129 |
| 1999 | 149 |
| 2000 | 180 |
| 2001 | 220 |
| 2002 | 290 |
| 2003 | 260 |
| 2004 | 217 |
| 2005 | 209 |
| 2006 | 181 |
| 2007 | 192 |
| 2008 | 183 |
| 2009 | 188 |
| 2010 | 149 |
| 2011 | 228 |
| 2012 | 209 |
| 2013 | 193 |
| 2014 | 193 |
| 2015 | 198 |
| 2016 | 155 |
| 2017 | 157 |
| 2018 | 149 |
| 2019 | 174 |
| 2020 | 168 |
| 2021 | 169 |
| 2022 | 64 |
| 2023 | 25 |
| 2024 | 8 |