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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1957 | 2 |
| 1958 | 1 |
| 1959 | 3 |
| 1960 | 8 |
| 1961 | 6 |
| 1962 | 4 |
| 1964 | 6 |
| 1965 | 46 |
| 1966 | 127 |
| 1967 | 137 |
| 1968 | 145 |
| 1969 | 159 |
| 1970 | 200 |
| 1971 | 225 |
| 1972 | 226 |
| 1973 | 315 |
| 1974 | 377 |
| 1975 | 352 |
| 1976 | 481 |
| 1977 | 510 |
| 1978 | 557 |
| 1979 | 542 |
| 1980 | 562 |
| 1981 | 659 |
| 1982 | 658 |
| 1983 | 688 |
| 1984 | 757 |
| 1985 | 827 |
| 1986 | 866 |
| 1987 | 953 |
| 1988 | 1007 |
| 1989 | 1052 |
| 1990 | 1107 |
| 1991 | 1168 |
| 1992 | 1234 |
| 1993 | 1184 |
| 1994 | 1391 |
| 1995 | 1431 |
| 1996 | 1404 |
| 1997 | 1445 |
| 1998 | 1440 |
| 1999 | 1515 |
| 2000 | 1571 |
| 2001 | 1736 |
| 2002 | 1851 |
| 2003 | 2203 |
| 2004 | 2322 |
| 2005 | 2559 |
| 2006 | 2730 |
| 2007 | 2922 |
| 2008 | 3260 |
| 2009 | 3639 |
| 2010 | 3893 |
| 2011 | 4360 |
| 2012 | 4685 |
| 2013 | 4712 |
| 2014 | 4284 |
| 2015 | 4062 |
| 2016 | 4079 |
| 2017 | 4053 |
| 2018 | 3759 |
| 2019 | 3611 |
| 2020 | 3312 |
| 2021 | 2453 |
| 2022 | 2390 |
| 2023 | 1834 |
| 2024 | 3134 |
| 2025 | 2112 |
| 2026 | 1 |