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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 1 |
| 1952 | 1 |
| 1953 | 1 |
| 1954 | 1 |
| 1955 | 1 |
| 1956 | 3 |
| 1957 | 2 |
| 1958 | 6 |
| 1959 | 2 |
| 1960 | 1 |
| 1961 | 5 |
| 1962 | 3 |
| 1963 | 3 |
| 1964 | 1 |
| 1966 | 1 |
| 1972 | 1 |
| 1974 | 2 |
| 1975 | 26 |
| 1976 | 40 |
| 1977 | 53 |
| 1978 | 39 |
| 1979 | 34 |
| 1980 | 43 |
| 1981 | 67 |
| 1982 | 62 |
| 1983 | 49 |
| 1984 | 63 |
| 1985 | 43 |
| 1986 | 53 |
| 1987 | 60 |
| 1988 | 59 |
| 1989 | 55 |
| 1990 | 62 |
| 1991 | 82 |
| 1992 | 125 |
| 1993 | 89 |
| 1994 | 84 |
| 1995 | 127 |
| 1996 | 112 |
| 1997 | 95 |
| 1998 | 103 |
| 1999 | 117 |
| 2000 | 109 |
| 2001 | 106 |
| 2002 | 140 |
| 2003 | 121 |
| 2004 | 144 |
| 2005 | 168 |
| 2006 | 190 |
| 2007 | 182 |
| 2008 | 174 |
| 2009 | 206 |
| 2010 | 209 |
| 2011 | 198 |
| 2012 | 231 |
| 2013 | 236 |
| 2014 | 206 |
| 2015 | 197 |
| 2016 | 178 |
| 2017 | 205 |
| 2018 | 180 |
| 2019 | 181 |
| 2020 | 165 |
| 2021 | 147 |
| 2022 | 127 |
| 2023 | 75 |
| 2024 | 35 |