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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1909 | 1 |
| 1916 | 1 |
| 1918 | 1 |
| 1946 | 1 |
| 1947 | 6 |
| 1948 | 13 |
| 1949 | 4 |
| 1951 | 9 |
| 1952 | 14 |
| 1953 | 27 |
| 1954 | 16 |
| 1955 | 13 |
| 1956 | 24 |
| 1957 | 18 |
| 1958 | 21 |
| 1959 | 18 |
| 1960 | 29 |
| 1961 | 29 |
| 1962 | 21 |
| 1963 | 23 |
| 1964 | 69 |
| 1965 | 84 |
| 1966 | 112 |
| 1967 | 188 |
| 1968 | 232 |
| 1969 | 237 |
| 1970 | 259 |
| 1971 | 290 |
| 1972 | 280 |
| 1973 | 340 |
| 1974 | 331 |
| 1975 | 420 |
| 1976 | 419 |
| 1977 | 366 |
| 1978 | 428 |
| 1979 | 528 |
| 1980 | 542 |
| 1981 | 626 |
| 1982 | 693 |
| 1983 | 772 |
| 1984 | 794 |
| 1985 | 928 |
| 1986 | 870 |
| 1987 | 968 |
| 1988 | 983 |
| 1989 | 1227 |
| 1990 | 1234 |
| 1991 | 1289 |
| 1992 | 1243 |
| 1993 | 1347 |
| 1994 | 1363 |
| 1995 | 1391 |
| 1996 | 1489 |
| 1997 | 1350 |
| 1998 | 1368 |
| 1999 | 1398 |
| 2000 | 1501 |
| 2001 | 1472 |
| 2002 | 1455 |
| 2003 | 1546 |
| 2004 | 1473 |
| 2005 | 1701 |
| 2006 | 1721 |
| 2007 | 1784 |
| 2008 | 1927 |
| 2009 | 1895 |
| 2010 | 1946 |
| 2011 | 2089 |
| 2012 | 2146 |
| 2013 | 2090 |
| 2014 | 2165 |
| 2015 | 2086 |
| 2016 | 2096 |
| 2017 | 1999 |
| 2018 | 1978 |
| 2019 | 1973 |
| 2020 | 2117 |
| 2021 | 2105 |
| 2022 | 1985 |
| 2023 | 1813 |
| 2024 | 1801 |
| 2025 | 1910 |
| 2026 | 1088 |