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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1960 | 3 |
| 1961 | 4 |
| 1962 | 4 |
| 1963 | 13 |
| 1964 | 12 |
| 1965 | 12 |
| 1966 | 16 |
| 1967 | 15 |
| 1968 | 25 |
| 1969 | 22 |
| 1970 | 41 |
| 1971 | 32 |
| 1972 | 38 |
| 1973 | 37 |
| 1974 | 40 |
| 1975 | 39 |
| 1976 | 42 |
| 1977 | 47 |
| 1978 | 79 |
| 1979 | 109 |
| 1980 | 657 |
| 1981 | 1350 |
| 1982 | 1462 |
| 1983 | 1542 |
| 1984 | 1716 |
| 1985 | 1841 |
| 1986 | 2035 |
| 1987 | 2425 |
| 1988 | 2676 |
| 1989 | 2902 |
| 1990 | 3284 |
| 1991 | 3720 |
| 1992 | 3960 |
| 1993 | 4368 |
| 1994 | 4747 |
| 1995 | 5319 |
| 1996 | 5787 |
| 1997 | 6976 |
| 1998 | 8715 |
| 1999 | 9946 |
| 2000 | 10982 |
| 2001 | 12917 |
| 2002 | 15395 |
| 2003 | 18267 |
| 2004 | 21766 |
| 2005 | 27046 |
| 2006 | 33656 |
| 2007 | 42899 |
| 2008 | 56960 |
| 2009 | 64010 |
| 2010 | 70277 |
| 2011 | 75119 |
| 2012 | 76719 |
| 2013 | 78241 |
| 2014 | 76832 |
| 2015 | 76252 |
| 2016 | 75290 |
| 2017 | 73138 |
| 2018 | 71959 |
| 2019 | 70605 |
| 2020 | 75170 |
| 2021 | 77551 |
| 2022 | 69378 |
| 2023 | 69663 |
| 2024 | 54732 |
| 2025 | 2815 |