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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1956 | 1 |
| 1957 | 3 |
| 1958 | 2 |
| 1959 | 4 |
| 1960 | 6 |
| 1961 | 3 |
| 1962 | 10 |
| 1963 | 12 |
| 1964 | 13 |
| 1965 | 6 |
| 1966 | 9 |
| 1967 | 18 |
| 1968 | 17 |
| 1969 | 13 |
| 1970 | 21 |
| 1971 | 19 |
| 1972 | 23 |
| 1973 | 21 |
| 1974 | 27 |
| 1975 | 27 |
| 1976 | 20 |
| 1977 | 27 |
| 1978 | 19 |
| 1979 | 22 |
| 1980 | 37 |
| 1981 | 42 |
| 1982 | 33 |
| 1983 | 23 |
| 1984 | 38 |
| 1985 | 39 |
| 1986 | 66 |
| 1987 | 78 |
| 1988 | 108 |
| 1989 | 97 |
| 1990 | 128 |
| 1991 | 132 |
| 1992 | 153 |
| 1993 | 166 |
| 1994 | 203 |
| 1995 | 204 |
| 1996 | 261 |
| 1997 | 279 |
| 1998 | 310 |
| 1999 | 305 |
| 2000 | 403 |
| 2001 | 493 |
| 2002 | 450 |
| 2003 | 520 |
| 2004 | 673 |
| 2005 | 815 |
| 2006 | 955 |
| 2007 | 1039 |
| 2008 | 1219 |
| 2009 | 1321 |
| 2010 | 1535 |
| 2011 | 1715 |
| 2012 | 1820 |
| 2013 | 1999 |
| 2014 | 2185 |
| 2015 | 2058 |
| 2016 | 2218 |
| 2017 | 2223 |
| 2018 | 2292 |
| 2019 | 2410 |
| 2020 | 2930 |
| 2021 | 3182 |
| 2022 | 2973 |
| 2023 | 2732 |
| 2024 | 2808 |
| 2025 | 1480 |