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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1829 | 1 |
| 1830 | 2 |
| 1922 | 1 |
| 1924 | 1 |
| 1943 | 1 |
| 1945 | 1 |
| 1946 | 7 |
| 1947 | 10 |
| 1948 | 11 |
| 1949 | 8 |
| 1950 | 13 |
| 1951 | 32 |
| 1952 | 23 |
| 1953 | 18 |
| 1954 | 28 |
| 1955 | 34 |
| 1956 | 22 |
| 1957 | 23 |
| 1958 | 22 |
| 1959 | 20 |
| 1960 | 25 |
| 1961 | 12 |
| 1962 | 10 |
| 1963 | 15 |
| 1964 | 15 |
| 1965 | 19 |
| 1966 | 9 |
| 1967 | 18 |
| 1968 | 12 |
| 1969 | 34 |
| 1970 | 16 |
| 1971 | 12 |
| 1972 | 34 |
| 1973 | 19 |
| 1974 | 14 |
| 1975 | 9 |
| 1976 | 18 |
| 1977 | 16 |
| 1978 | 19 |
| 1979 | 14 |
| 1980 | 16 |
| 1981 | 16 |
| 1982 | 25 |
| 1983 | 20 |
| 1984 | 41 |
| 1985 | 25 |
| 1986 | 36 |
| 1987 | 128 |
| 1988 | 270 |
| 1989 | 234 |
| 1990 | 302 |
| 1991 | 316 |
| 1992 | 312 |
| 1993 | 307 |
| 1994 | 339 |
| 1995 | 334 |
| 1996 | 342 |
| 1997 | 349 |
| 1998 | 332 |
| 1999 | 372 |
| 2000 | 359 |
| 2001 | 442 |
| 2002 | 431 |
| 2003 | 425 |
| 2004 | 429 |
| 2005 | 483 |
| 2006 | 478 |
| 2007 | 476 |
| 2008 | 534 |
| 2009 | 513 |
| 2010 | 601 |
| 2011 | 625 |
| 2012 | 664 |
| 2013 | 721 |
| 2014 | 1145 |
| 2015 | 1438 |
| 2016 | 1598 |
| 2017 | 1649 |
| 2018 | 1669 |
| 2019 | 1715 |
| 2020 | 2068 |
| 2021 | 2147 |
| 2022 | 2015 |
| 2023 | 240 |