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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 1 |
| 1964 | 3 |
| 1965 | 34 |
| 1966 | 56 |
| 1967 | 81 |
| 1968 | 97 |
| 1969 | 115 |
| 1970 | 95 |
| 1971 | 129 |
| 1972 | 142 |
| 1973 | 172 |
| 1974 | 177 |
| 1975 | 178 |
| 1976 | 182 |
| 1977 | 174 |
| 1978 | 200 |
| 1979 | 243 |
| 1980 | 244 |
| 1981 | 216 |
| 1982 | 258 |
| 1983 | 243 |
| 1984 | 342 |
| 1985 | 363 |
| 1986 | 345 |
| 1987 | 334 |
| 1988 | 403 |
| 1989 | 443 |
| 1990 | 484 |
| 1991 | 509 |
| 1992 | 551 |
| 1993 | 679 |
| 1994 | 690 |
| 1995 | 760 |
| 1996 | 786 |
| 1997 | 709 |
| 1998 | 659 |
| 1999 | 677 |
| 2000 | 821 |
| 2001 | 769 |
| 2002 | 931 |
| 2003 | 923 |
| 2004 | 1017 |
| 2005 | 1180 |
| 2006 | 1307 |
| 2007 | 1269 |
| 2008 | 1348 |
| 2009 | 1531 |
| 2010 | 1620 |
| 2011 | 1633 |
| 2012 | 1592 |
| 2013 | 1559 |
| 2014 | 1510 |
| 2015 | 1480 |
| 2016 | 1427 |
| 2017 | 1562 |
| 2018 | 1452 |
| 2019 | 1410 |
| 2020 | 1010 |
| 2021 | 554 |
| 2022 | 80 |
| 2023 | 49 |
| 2024 | 571 |
| 2025 | 568 |