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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1960 | 1 |
| 1962 | 1 |
| 1965 | 1 |
| 1966 | 7 |
| 1967 | 17 |
| 1968 | 7 |
| 1969 | 9 |
| 1970 | 4 |
| 1971 | 9 |
| 1972 | 6 |
| 1973 | 8 |
| 1974 | 27 |
| 1975 | 20 |
| 1976 | 22 |
| 1977 | 22 |
| 1978 | 22 |
| 1979 | 17 |
| 1980 | 21 |
| 1981 | 13 |
| 1982 | 24 |
| 1983 | 28 |
| 1984 | 40 |
| 1985 | 51 |
| 1986 | 94 |
| 1987 | 130 |
| 1988 | 160 |
| 1989 | 190 |
| 1990 | 210 |
| 1991 | 247 |
| 1992 | 270 |
| 1993 | 299 |
| 1994 | 311 |
| 1995 | 421 |
| 1996 | 550 |
| 1997 | 777 |
| 1998 | 1049 |
| 1999 | 1409 |
| 2000 | 1995 |
| 2001 | 2334 |
| 2002 | 2432 |
| 2003 | 3074 |
| 2004 | 3043 |
| 2005 | 2871 |
| 2006 | 3236 |
| 2007 | 3407 |
| 2008 | 3488 |
| 2009 | 3675 |
| 2010 | 3692 |
| 2011 | 3964 |
| 2012 | 4208 |
| 2013 | 4336 |
| 2014 | 4037 |
| 2015 | 3868 |
| 2016 | 3744 |
| 2017 | 3406 |
| 2018 | 3139 |
| 2019 | 2664 |
| 2020 | 2425 |
| 2021 | 2052 |
| 2022 | 2180 |
| 2023 | 1644 |
| 2024 | 2094 |
| 2025 | 1240 |
| 2026 | 2 |