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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 | 9 |
| 1957 | 8 |
| 1958 | 10 |
| 1959 | 14 |
| 1960 | 25 |
| 1961 | 25 |
| 1962 | 33 |
| 1965 | 2 |
| 1966 | 20 |
| 1967 | 59 |
| 1968 | 37 |
| 1969 | 73 |
| 1970 | 61 |
| 1971 | 90 |
| 1972 | 120 |
| 1973 | 169 |
| 1974 | 211 |
| 1975 | 192 |
| 1976 | 189 |
| 1977 | 228 |
| 1978 | 257 |
| 1979 | 276 |
| 1980 | 273 |
| 1981 | 241 |
| 1982 | 257 |
| 1983 | 226 |
| 1984 | 212 |
| 1985 | 198 |
| 1986 | 184 |
| 1987 | 165 |
| 1988 | 159 |
| 1989 | 137 |
| 1990 | 130 |
| 1991 | 102 |
| 1992 | 89 |
| 1993 | 87 |
| 1994 | 77 |
| 1995 | 73 |
| 1996 | 97 |
| 1997 | 65 |
| 1998 | 70 |
| 1999 | 62 |
| 2000 | 60 |
| 2001 | 64 |
| 2002 | 62 |
| 2003 | 71 |
| 2004 | 62 |
| 2005 | 92 |
| 2006 | 63 |
| 2007 | 99 |
| 2008 | 97 |
| 2009 | 82 |
| 2010 | 109 |
| 2011 | 95 |
| 2012 | 109 |
| 2013 | 131 |
| 2014 | 109 |
| 2015 | 122 |
| 2016 | 134 |
| 2017 | 137 |
| 2018 | 128 |
| 2019 | 112 |
| 2020 | 106 |
| 2021 | 87 |
| 2022 | 16 |
| 2023 | 4 |
| 2024 | 1 |