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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1938 | 1 |
| 1957 | 2 |
| 1959 | 3 |
| 1961 | 1 |
| 1962 | 1 |
| 1963 | 1 |
| 1965 | 1 |
| 1966 | 1 |
| 1967 | 4 |
| 1968 | 1 |
| 1969 | 1 |
| 1970 | 4 |
| 1971 | 4 |
| 1972 | 4 |
| 1973 | 3 |
| 1974 | 3 |
| 1975 | 6 |
| 1976 | 8 |
| 1977 | 7 |
| 1978 | 2 |
| 1979 | 4 |
| 1980 | 8 |
| 1981 | 3 |
| 1982 | 1 |
| 1983 | 7 |
| 1984 | 9 |
| 1985 | 7 |
| 1986 | 7 |
| 1987 | 13 |
| 1988 | 24 |
| 1989 | 30 |
| 1990 | 26 |
| 1991 | 19 |
| 1992 | 29 |
| 1993 | 36 |
| 1994 | 36 |
| 1995 | 39 |
| 1996 | 53 |
| 1997 | 55 |
| 1998 | 53 |
| 1999 | 90 |
| 2000 | 90 |
| 2001 | 93 |
| 2002 | 118 |
| 2003 | 161 |
| 2004 | 180 |
| 2005 | 246 |
| 2006 | 261 |
| 2007 | 304 |
| 2008 | 331 |
| 2009 | 424 |
| 2010 | 500 |
| 2011 | 527 |
| 2012 | 623 |
| 2013 | 714 |
| 2014 | 684 |
| 2015 | 797 |
| 2016 | 718 |
| 2017 | 734 |
| 2018 | 785 |
| 2019 | 811 |
| 2020 | 898 |
| 2021 | 927 |
| 2022 | 895 |
| 2023 | 840 |
| 2024 | 345 |