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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1841 | 1 |
| 1849 | 1 |
| 1890 | 1 |
| 1910 | 1 |
| 1919 | 1 |
| 1920 | 1 |
| 1934 | 1 |
| 1935 | 1 |
| 1945 | 3 |
| 1946 | 11 |
| 1947 | 9 |
| 1948 | 15 |
| 1949 | 10 |
| 1950 | 21 |
| 1951 | 15 |
| 1952 | 12 |
| 1953 | 11 |
| 1954 | 9 |
| 1955 | 16 |
| 1956 | 13 |
| 1957 | 24 |
| 1958 | 14 |
| 1959 | 21 |
| 1960 | 25 |
| 1961 | 28 |
| 1962 | 38 |
| 1963 | 85 |
| 1964 | 101 |
| 1965 | 87 |
| 1966 | 102 |
| 1967 | 177 |
| 1968 | 166 |
| 1969 | 178 |
| 1970 | 188 |
| 1971 | 244 |
| 1972 | 358 |
| 1973 | 410 |
| 1974 | 544 |
| 1975 | 597 |
| 1976 | 640 |
| 1977 | 674 |
| 1978 | 707 |
| 1979 | 855 |
| 1980 | 861 |
| 1981 | 795 |
| 1982 | 900 |
| 1983 | 963 |
| 1984 | 1010 |
| 1985 | 1162 |
| 1986 | 1200 |
| 1987 | 1044 |
| 1988 | 1103 |
| 1989 | 1193 |
| 1990 | 1403 |
| 1991 | 1413 |
| 1992 | 1442 |
| 1993 | 1578 |
| 1994 | 1660 |
| 1995 | 1613 |
| 1996 | 1584 |
| 1997 | 1617 |
| 1998 | 1693 |
| 1999 | 1741 |
| 2000 | 1797 |
| 2001 | 1614 |
| 2002 | 1558 |
| 2003 | 1607 |
| 2004 | 1662 |
| 2005 | 1600 |
| 2006 | 1713 |
| 2007 | 1838 |
| 2008 | 1877 |
| 2009 | 1886 |
| 2010 | 1919 |
| 2011 | 1981 |
| 2012 | 2091 |
| 2013 | 2171 |
| 2014 | 2195 |
| 2015 | 2264 |
| 2016 | 2242 |
| 2017 | 2110 |
| 2018 | 2058 |
| 2019 | 2071 |
| 2020 | 1916 |
| 2021 | 1616 |
| 2022 | 1194 |
| 2023 | 1031 |
| 2024 | 1222 |
| 2025 | 1328 |
| 2026 | 636 |