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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1879 | 1 |
| 1935 | 1 |
| 1939 | 1 |
| 1946 | 1 |
| 1955 | 1 |
| 1962 | 2 |
| 1966 | 2 |
| 1967 | 1 |
| 1970 | 1 |
| 1973 | 1 |
| 1974 | 1 |
| 1976 | 5 |
| 1977 | 1 |
| 1978 | 1 |
| 1979 | 3 |
| 1980 | 5 |
| 1981 | 5 |
| 1982 | 4 |
| 1983 | 2 |
| 1984 | 10 |
| 1985 | 10 |
| 1986 | 7 |
| 1987 | 8 |
| 1988 | 10 |
| 1989 | 10 |
| 1990 | 10 |
| 1991 | 13 |
| 1992 | 16 |
| 1993 | 26 |
| 1994 | 21 |
| 1995 | 40 |
| 1996 | 28 |
| 1997 | 26 |
| 1998 | 48 |
| 1999 | 49 |
| 2000 | 45 |
| 2001 | 48 |
| 2002 | 59 |
| 2003 | 70 |
| 2004 | 73 |
| 2005 | 100 |
| 2006 | 129 |
| 2007 | 121 |
| 2008 | 146 |
| 2009 | 174 |
| 2010 | 184 |
| 2011 | 237 |
| 2012 | 295 |
| 2013 | 291 |
| 2014 | 275 |
| 2015 | 316 |
| 2016 | 302 |
| 2017 | 313 |
| 2018 | 301 |
| 2019 | 328 |
| 2020 | 369 |
| 2021 | 381 |
| 2022 | 362 |
| 2023 | 161 |