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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1967 | 159 |
| 1968 | 201 |
| 1969 | 226 |
| 1970 | 228 |
| 1971 | 234 |
| 1972 | 307 |
| 1973 | 340 |
| 1974 | 396 |
| 1975 | 429 |
| 1976 | 417 |
| 1977 | 453 |
| 1978 | 413 |
| 1979 | 474 |
| 1980 | 438 |
| 1981 | 483 |
| 1982 | 524 |
| 1983 | 442 |
| 1984 | 557 |
| 1985 | 550 |
| 1986 | 571 |
| 1987 | 583 |
| 1988 | 672 |
| 1989 | 750 |
| 1990 | 833 |
| 1991 | 939 |
| 1992 | 971 |
| 1993 | 957 |
| 1994 | 1013 |
| 1995 | 1080 |
| 1996 | 1155 |
| 1997 | 1249 |
| 1998 | 1302 |
| 1999 | 1251 |
| 2000 | 1409 |
| 2001 | 1361 |
| 2002 | 1387 |
| 2003 | 1419 |
| 2004 | 1471 |
| 2005 | 1607 |
| 2006 | 1570 |
| 2007 | 1697 |
| 2008 | 1519 |
| 2009 | 1500 |
| 2010 | 1547 |
| 2011 | 1615 |
| 2012 | 1856 |
| 2013 | 1619 |
| 2014 | 1581 |
| 2015 | 1426 |
| 2016 | 938 |
| 2017 | 963 |
| 2018 | 861 |
| 2019 | 834 |
| 2020 | 799 |
| 2021 | 804 |
| 2022 | 745 |
| 2023 | 583 |
| 2024 | 662 |
| 2025 | 813 |
| 2026 | 400 |