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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1873 | 1 |
| 1887 | 1 |
| 1935 | 1 |
| 1945 | 1 |
| 1948 | 3 |
| 1951 | 1 |
| 1952 | 1 |
| 1953 | 1 |
| 1955 | 1 |
| 1958 | 2 |
| 1961 | 2 |
| 1963 | 1 |
| 1965 | 2 |
| 1966 | 3 |
| 1967 | 3 |
| 1968 | 4 |
| 1969 | 3 |
| 1970 | 5 |
| 1971 | 6 |
| 1972 | 4 |
| 1973 | 10 |
| 1974 | 21 |
| 1975 | 286 |
| 1976 | 355 |
| 1977 | 377 |
| 1978 | 364 |
| 1979 | 436 |
| 1980 | 509 |
| 1981 | 599 |
| 1982 | 654 |
| 1983 | 686 |
| 1984 | 704 |
| 1985 | 788 |
| 1986 | 814 |
| 1987 | 928 |
| 1988 | 1054 |
| 1989 | 1083 |
| 1990 | 1233 |
| 1991 | 1283 |
| 1992 | 1382 |
| 1993 | 1458 |
| 1994 | 1476 |
| 1995 | 1528 |
| 1996 | 1587 |
| 1997 | 1599 |
| 1998 | 1680 |
| 1999 | 1739 |
| 2000 | 1856 |
| 2001 | 1912 |
| 2002 | 1986 |
| 2003 | 2140 |
| 2004 | 2369 |
| 2005 | 2533 |
| 2006 | 2149 |
| 2007 | 2293 |
| 2008 | 2658 |
| 2009 | 2820 |
| 2010 | 3070 |
| 2011 | 3457 |
| 2012 | 3477 |
| 2013 | 3660 |
| 2014 | 4122 |
| 2015 | 4396 |
| 2016 | 3160 |
| 2017 | 2601 |
| 2018 | 4172 |
| 2019 | 4342 |
| 2020 | 4828 |
| 2021 | 5702 |
| 2022 | 5335 |
| 2023 | 4599 |
| 2024 | 869 |