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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1960 | 1 |
| 1961 | 3 |
| 1962 | 1 |
| 1965 | 9 |
| 1966 | 16 |
| 1967 | 15 |
| 1968 | 11 |
| 1969 | 18 |
| 1970 | 8 |
| 1971 | 12 |
| 1972 | 10 |
| 1973 | 10 |
| 1974 | 6 |
| 1975 | 5 |
| 1976 | 12 |
| 1977 | 7 |
| 1978 | 12 |
| 1979 | 11 |
| 1980 | 10 |
| 1981 | 23 |
| 1982 | 44 |
| 1983 | 41 |
| 1984 | 49 |
| 1985 | 61 |
| 1986 | 66 |
| 1987 | 57 |
| 1988 | 73 |
| 1989 | 67 |
| 1990 | 52 |
| 1991 | 68 |
| 1992 | 70 |
| 1993 | 70 |
| 1994 | 77 |
| 1995 | 107 |
| 1996 | 105 |
| 1997 | 123 |
| 1998 | 141 |
| 1999 | 158 |
| 2000 | 229 |
| 2001 | 288 |
| 2002 | 356 |
| 2003 | 460 |
| 2004 | 555 |
| 2005 | 889 |
| 2006 | 955 |
| 2007 | 1193 |
| 2008 | 1391 |
| 2009 | 1669 |
| 2010 | 1536 |
| 2011 | 1597 |
| 2012 | 1700 |
| 2013 | 2010 |
| 2014 | 2026 |
| 2015 | 1896 |
| 2016 | 1643 |
| 2017 | 1540 |
| 2018 | 1294 |
| 2019 | 1091 |
| 2020 | 1081 |
| 2021 | 861 |
| 2022 | 707 |
| 2023 | 566 |
| 2024 | 1284 |
| 2025 | 948 |