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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 1 |
| 1967 | 2 |
| 1968 | 2 |
| 1971 | 1 |
| 1972 | 1 |
| 1973 | 7 |
| 1974 | 13 |
| 1975 | 21 |
| 1976 | 12 |
| 1977 | 9 |
| 1978 | 9 |
| 1979 | 11 |
| 1980 | 10 |
| 1981 | 13 |
| 1982 | 14 |
| 1983 | 7 |
| 1984 | 8 |
| 1985 | 11 |
| 1986 | 14 |
| 1987 | 18 |
| 1988 | 37 |
| 1989 | 236 |
| 1990 | 484 |
| 1991 | 505 |
| 1992 | 557 |
| 1993 | 544 |
| 1994 | 557 |
| 1995 | 475 |
| 1996 | 534 |
| 1997 | 529 |
| 1998 | 493 |
| 1999 | 624 |
| 2000 | 510 |
| 2001 | 663 |
| 2002 | 696 |
| 2003 | 775 |
| 2004 | 832 |
| 2005 | 916 |
| 2006 | 933 |
| 2007 | 1112 |
| 2008 | 1033 |
| 2009 | 1118 |
| 2010 | 1132 |
| 2011 | 1380 |
| 2012 | 1465 |
| 2013 | 1454 |
| 2014 | 1467 |
| 2015 | 1453 |
| 2016 | 1492 |
| 2017 | 1523 |
| 2018 | 1514 |
| 2019 | 1475 |
| 2020 | 3052 |
| 2021 | 2448 |
| 2022 | 852 |
| 2023 | 850 |
| 2024 | 1477 |
| 2025 | 899 |