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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1949 | 2 |
| 1950 | 1 |
| 1951 | 3 |
| 1952 | 7 |
| 1953 | 7 |
| 1954 | 2 |
| 1955 | 2 |
| 1956 | 7 |
| 1957 | 11 |
| 1958 | 5 |
| 1959 | 5 |
| 1960 | 6 |
| 1961 | 3 |
| 1962 | 5 |
| 1963 | 3 |
| 1964 | 4 |
| 1965 | 5 |
| 1966 | 7 |
| 1967 | 5 |
| 1968 | 3 |
| 1969 | 5 |
| 1970 | 1 |
| 1971 | 10 |
| 1972 | 7 |
| 1973 | 12 |
| 1974 | 7 |
| 1975 | 6 |
| 1976 | 8 |
| 1977 | 9 |
| 1978 | 2 |
| 1979 | 4 |
| 1980 | 12 |
| 1981 | 12 |
| 1982 | 16 |
| 1983 | 15 |
| 1984 | 14 |
| 1985 | 6 |
| 1986 | 4 |
| 1987 | 6 |
| 1988 | 8 |
| 1989 | 2 |
| 1990 | 38 |
| 1991 | 178 |
| 1992 | 426 |
| 1993 | 594 |
| 1994 | 856 |
| 1995 | 866 |
| 1996 | 950 |
| 1997 | 1018 |
| 1998 | 984 |
| 1999 | 1016 |
| 2000 | 995 |
| 2001 | 872 |
| 2002 | 780 |
| 2003 | 838 |
| 2004 | 706 |
| 2005 | 768 |
| 2006 | 787 |
| 2007 | 716 |
| 2008 | 644 |
| 2009 | 531 |
| 2010 | 460 |
| 2011 | 459 |
| 2012 | 423 |
| 2013 | 393 |
| 2014 | 360 |
| 2015 | 320 |
| 2016 | 289 |
| 2017 | 273 |
| 2018 | 232 |
| 2019 | 219 |
| 2020 | 223 |
| 2021 | 202 |
| 2022 | 216 |
| 2023 | 183 |
| 2024 | 46 |