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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1942 | 1 |
| 1947 | 1 |
| 1949 | 1 |
| 1957 | 4 |
| 1958 | 2 |
| 1959 | 3 |
| 1960 | 2 |
| 1961 | 1 |
| 1962 | 1 |
| 1963 | 3 |
| 1964 | 4 |
| 1965 | 1 |
| 1967 | 4 |
| 1970 | 1 |
| 1971 | 2 |
| 1972 | 1 |
| 1973 | 7 |
| 1974 | 3 |
| 1975 | 2 |
| 1976 | 3 |
| 1977 | 4 |
| 1978 | 8 |
| 1979 | 17 |
| 1980 | 17 |
| 1981 | 16 |
| 1982 | 34 |
| 1983 | 22 |
| 1984 | 30 |
| 1985 | 18 |
| 1986 | 17 |
| 1987 | 26 |
| 1988 | 41 |
| 1989 | 34 |
| 1990 | 36 |
| 1991 | 45 |
| 1992 | 55 |
| 1993 | 52 |
| 1994 | 68 |
| 1995 | 78 |
| 1996 | 72 |
| 1997 | 86 |
| 1998 | 92 |
| 1999 | 110 |
| 2000 | 123 |
| 2001 | 154 |
| 2002 | 181 |
| 2003 | 231 |
| 2004 | 281 |
| 2005 | 341 |
| 2006 | 352 |
| 2007 | 426 |
| 2008 | 462 |
| 2009 | 501 |
| 2010 | 645 |
| 2011 | 716 |
| 2012 | 857 |
| 2013 | 848 |
| 2014 | 942 |
| 2015 | 968 |
| 2016 | 1057 |
| 2017 | 1119 |
| 2018 | 1160 |
| 2019 | 1297 |
| 2020 | 1576 |
| 2021 | 1774 |
| 2022 | 1907 |
| 2023 | 879 |