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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 2 |
| 1948 | 1 |
| 1949 | 2 |
| 1956 | 3 |
| 1958 | 3 |
| 1959 | 2 |
| 1961 | 4 |
| 1962 | 2 |
| 1964 | 1 |
| 1965 | 2 |
| 1970 | 2 |
| 1971 | 13 |
| 1972 | 47 |
| 1973 | 41 |
| 1974 | 62 |
| 1975 | 35 |
| 1976 | 37 |
| 1977 | 41 |
| 1978 | 45 |
| 1979 | 42 |
| 1980 | 34 |
| 1981 | 33 |
| 1982 | 39 |
| 1983 | 49 |
| 1984 | 51 |
| 1985 | 67 |
| 1986 | 66 |
| 1987 | 62 |
| 1988 | 57 |
| 1989 | 79 |
| 1990 | 85 |
| 1991 | 84 |
| 1992 | 121 |
| 1993 | 99 |
| 1994 | 88 |
| 1995 | 100 |
| 1996 | 80 |
| 1997 | 75 |
| 1998 | 97 |
| 1999 | 78 |
| 2000 | 80 |
| 2001 | 99 |
| 2002 | 102 |
| 2003 | 147 |
| 2004 | 121 |
| 2005 | 140 |
| 2006 | 123 |
| 2007 | 127 |
| 2008 | 151 |
| 2009 | 193 |
| 2010 | 182 |
| 2011 | 185 |
| 2012 | 176 |
| 2013 | 159 |
| 2014 | 125 |
| 2015 | 107 |
| 2016 | 87 |
| 2017 | 88 |
| 2018 | 99 |
| 2019 | 62 |
| 2020 | 75 |
| 2021 | 84 |
| 2022 | 44 |
| 2023 | 48 |
| 2024 | 22 |