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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1952 | 2 |
| 1953 | 5 |
| 1954 | 5 |
| 1956 | 8 |
| 1957 | 9 |
| 1958 | 1 |
| 1959 | 5 |
| 1960 | 8 |
| 1961 | 3 |
| 1962 | 2 |
| 1965 | 12 |
| 1966 | 18 |
| 1967 | 28 |
| 1968 | 39 |
| 1969 | 40 |
| 1970 | 46 |
| 1971 | 46 |
| 1972 | 31 |
| 1973 | 40 |
| 1974 | 32 |
| 1975 | 34 |
| 1976 | 44 |
| 1977 | 29 |
| 1978 | 32 |
| 1979 | 37 |
| 1980 | 36 |
| 1981 | 53 |
| 1982 | 70 |
| 1983 | 82 |
| 1984 | 110 |
| 1985 | 117 |
| 1986 | 88 |
| 1987 | 114 |
| 1988 | 121 |
| 1989 | 106 |
| 1990 | 97 |
| 1991 | 109 |
| 1992 | 111 |
| 1993 | 110 |
| 1994 | 120 |
| 1995 | 142 |
| 1996 | 159 |
| 1997 | 101 |
| 1998 | 119 |
| 1999 | 101 |
| 2000 | 123 |
| 2001 | 112 |
| 2002 | 145 |
| 2003 | 161 |
| 2004 | 155 |
| 2005 | 176 |
| 2006 | 193 |
| 2007 | 169 |
| 2008 | 192 |
| 2009 | 203 |
| 2010 | 180 |
| 2011 | 197 |
| 2012 | 212 |
| 2013 | 184 |
| 2014 | 176 |
| 2015 | 188 |
| 2016 | 152 |
| 2017 | 149 |
| 2018 | 170 |
| 2019 | 150 |
| 2020 | 151 |
| 2021 | 119 |
| 2022 | 76 |
| 2023 | 63 |
| 2024 | 28 |