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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1908 | 1 |
| 1952 | 1 |
| 1962 | 2 |
| 1963 | 2 |
| 1964 | 1 |
| 1966 | 3 |
| 1967 | 3 |
| 1968 | 2 |
| 1969 | 1 |
| 1970 | 3 |
| 1971 | 1 |
| 1972 | 2 |
| 1973 | 4 |
| 1974 | 5 |
| 1975 | 4 |
| 1976 | 4 |
| 1977 | 11 |
| 1978 | 3 |
| 1979 | 3 |
| 1980 | 7 |
| 1981 | 3 |
| 1982 | 5 |
| 1983 | 8 |
| 1984 | 9 |
| 1985 | 8 |
| 1986 | 23 |
| 1987 | 29 |
| 1988 | 26 |
| 1989 | 50 |
| 1990 | 41 |
| 1991 | 43 |
| 1992 | 68 |
| 1993 | 60 |
| 1994 | 82 |
| 1995 | 73 |
| 1996 | 122 |
| 1997 | 100 |
| 1998 | 171 |
| 1999 | 150 |
| 2000 | 211 |
| 2001 | 245 |
| 2002 | 284 |
| 2003 | 337 |
| 2004 | 411 |
| 2005 | 459 |
| 2006 | 519 |
| 2007 | 654 |
| 2008 | 713 |
| 2009 | 780 |
| 2010 | 1044 |
| 2011 | 1141 |
| 2012 | 1338 |
| 2013 | 1366 |
| 2014 | 1486 |
| 2015 | 1531 |
| 2016 | 1518 |
| 2017 | 1477 |
| 2018 | 1481 |
| 2019 | 1538 |
| 2020 | 1614 |
| 2021 | 1586 |
| 2022 | 1464 |
| 2023 | 599 |