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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1953 | 1 |
| 1956 | 5 |
| 1957 | 9 |
| 1958 | 8 |
| 1959 | 1 |
| 1960 | 3 |
| 1961 | 3 |
| 1962 | 3 |
| 1964 | 4 |
| 1965 | 23 |
| 1966 | 29 |
| 1967 | 66 |
| 1968 | 66 |
| 1969 | 80 |
| 1970 | 77 |
| 1971 | 76 |
| 1972 | 86 |
| 1973 | 109 |
| 1974 | 106 |
| 1975 | 123 |
| 1976 | 109 |
| 1977 | 95 |
| 1978 | 113 |
| 1979 | 125 |
| 1980 | 124 |
| 1981 | 117 |
| 1982 | 130 |
| 1983 | 172 |
| 1984 | 229 |
| 1985 | 226 |
| 1986 | 198 |
| 1987 | 173 |
| 1988 | 160 |
| 1989 | 179 |
| 1990 | 173 |
| 1991 | 164 |
| 1992 | 133 |
| 1993 | 176 |
| 1994 | 117 |
| 1995 | 128 |
| 1996 | 118 |
| 1997 | 120 |
| 1998 | 126 |
| 1999 | 137 |
| 2000 | 137 |
| 2001 | 138 |
| 2002 | 127 |
| 2003 | 150 |
| 2004 | 162 |
| 2005 | 170 |
| 2006 | 189 |
| 2007 | 216 |
| 2008 | 218 |
| 2009 | 248 |
| 2010 | 300 |
| 2011 | 272 |
| 2012 | 246 |
| 2013 | 262 |
| 2014 | 207 |
| 2015 | 226 |
| 2016 | 263 |
| 2017 | 186 |
| 2018 | 148 |
| 2019 | 193 |
| 2020 | 155 |
| 2021 | 110 |
| 2022 | 110 |
| 2023 | 119 |
| 2024 | 41 |