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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 1 |
| 1964 | 3 |
| 1965 | 27 |
| 1966 | 44 |
| 1967 | 47 |
| 1968 | 48 |
| 1969 | 55 |
| 1970 | 47 |
| 1971 | 58 |
| 1972 | 50 |
| 1973 | 60 |
| 1974 | 54 |
| 1975 | 48 |
| 1976 | 60 |
| 1977 | 55 |
| 1978 | 40 |
| 1979 | 49 |
| 1980 | 74 |
| 1981 | 83 |
| 1982 | 145 |
| 1983 | 91 |
| 1984 | 106 |
| 1985 | 117 |
| 1986 | 157 |
| 1987 | 179 |
| 1988 | 234 |
| 1989 | 232 |
| 1990 | 215 |
| 1991 | 232 |
| 1992 | 282 |
| 1993 | 234 |
| 1994 | 302 |
| 1995 | 939 |
| 1996 | 1724 |
| 1997 | 2111 |
| 1998 | 2682 |
| 1999 | 3041 |
| 2000 | 3245 |
| 2001 | 3132 |
| 2002 | 3189 |
| 2003 | 3553 |
| 2004 | 3623 |
| 2005 | 3781 |
| 2006 | 4018 |
| 2007 | 4343 |
| 2008 | 4326 |
| 2009 | 4798 |
| 2010 | 5228 |
| 2011 | 5432 |
| 2012 | 5667 |
| 2013 | 5901 |
| 2014 | 6116 |
| 2015 | 5941 |
| 2016 | 5632 |
| 2017 | 5483 |
| 2018 | 5557 |
| 2019 | 5547 |
| 2020 | 7516 |
| 2021 | 6713 |
| 2022 | 4976 |
| 2023 | 4128 |
| 2024 | 4942 |
| 2025 | 2385 |