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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1952 | 1 |
| 1953 | 2 |
| 1955 | 2 |
| 1956 | 1 |
| 1957 | 2 |
| 1958 | 4 |
| 1959 | 2 |
| 1960 | 3 |
| 1961 | 13 |
| 1962 | 16 |
| 1963 | 19 |
| 1964 | 15 |
| 1965 | 25 |
| 1966 | 38 |
| 1967 | 36 |
| 1968 | 18 |
| 1969 | 45 |
| 1970 | 51 |
| 1971 | 56 |
| 1972 | 51 |
| 1973 | 47 |
| 1974 | 52 |
| 1975 | 35 |
| 1976 | 44 |
| 1977 | 47 |
| 1978 | 37 |
| 1979 | 56 |
| 1980 | 77 |
| 1981 | 93 |
| 1982 | 116 |
| 1983 | 136 |
| 1984 | 97 |
| 1985 | 126 |
| 1986 | 119 |
| 1987 | 105 |
| 1988 | 137 |
| 1989 | 140 |
| 1990 | 129 |
| 1991 | 111 |
| 1992 | 123 |
| 1993 | 106 |
| 1994 | 119 |
| 1995 | 124 |
| 1996 | 139 |
| 1997 | 133 |
| 1998 | 138 |
| 1999 | 152 |
| 2000 | 144 |
| 2001 | 133 |
| 2002 | 144 |
| 2003 | 137 |
| 2004 | 170 |
| 2005 | 182 |
| 2006 | 207 |
| 2007 | 200 |
| 2008 | 236 |
| 2009 | 190 |
| 2010 | 203 |
| 2011 | 226 |
| 2012 | 212 |
| 2013 | 207 |
| 2014 | 227 |
| 2015 | 177 |
| 2016 | 187 |
| 2017 | 189 |
| 2018 | 195 |
| 2019 | 206 |
| 2020 | 214 |
| 2021 | 242 |
| 2022 | 247 |
| 2023 | 215 |
| 2024 | 215 |
| 2025 | 3 |