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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1966 | 1 |
| 1968 | 2 |
| 1969 | 2 |
| 1970 | 10 |
| 1971 | 50 |
| 1972 | 43 |
| 1973 | 63 |
| 1974 | 95 |
| 1975 | 78 |
| 1976 | 65 |
| 1977 | 76 |
| 1978 | 106 |
| 1979 | 137 |
| 1980 | 208 |
| 1981 | 183 |
| 1982 | 279 |
| 1983 | 341 |
| 1984 | 431 |
| 1985 | 432 |
| 1986 | 351 |
| 1987 | 336 |
| 1988 | 421 |
| 1989 | 552 |
| 1990 | 521 |
| 1991 | 647 |
| 1992 | 656 |
| 1993 | 736 |
| 1994 | 833 |
| 1995 | 953 |
| 1996 | 1031 |
| 1997 | 1080 |
| 1998 | 1192 |
| 1999 | 1430 |
| 2000 | 1524 |
| 2001 | 1740 |
| 2002 | 2262 |
| 2003 | 2621 |
| 2004 | 2944 |
| 2005 | 3789 |
| 2006 | 4533 |
| 2007 | 5160 |
| 2008 | 5915 |
| 2009 | 6537 |
| 2010 | 7960 |
| 2011 | 8821 |
| 2012 | 9807 |
| 2013 | 10641 |
| 2014 | 9861 |
| 2015 | 10048 |
| 2016 | 9936 |
| 2017 | 10363 |
| 2018 | 9931 |
| 2019 | 9930 |
| 2020 | 8557 |
| 2021 | 7476 |
| 2022 | 5231 |
| 2023 | 4243 |
| 2024 | 6128 |
| 2025 | 21 |