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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1962 | 1 |
| 1966 | 3 |
| 1967 | 1 |
| 1968 | 1 |
| 1970 | 1 |
| 1972 | 3 |
| 1973 | 1 |
| 1974 | 18 |
| 1975 | 22 |
| 1976 | 24 |
| 1977 | 19 |
| 1978 | 33 |
| 1979 | 28 |
| 1980 | 30 |
| 1981 | 22 |
| 1982 | 21 |
| 1983 | 33 |
| 1984 | 40 |
| 1985 | 44 |
| 1986 | 47 |
| 1987 | 30 |
| 1988 | 52 |
| 1989 | 137 |
| 1990 | 339 |
| 1991 | 398 |
| 1992 | 414 |
| 1993 | 399 |
| 1994 | 414 |
| 1995 | 430 |
| 1996 | 436 |
| 1997 | 509 |
| 1998 | 508 |
| 1999 | 595 |
| 2000 | 820 |
| 2001 | 902 |
| 2002 | 1014 |
| 2003 | 1218 |
| 2004 | 1432 |
| 2005 | 1533 |
| 2006 | 1763 |
| 2007 | 1993 |
| 2008 | 2099 |
| 2009 | 2221 |
| 2010 | 2251 |
| 2011 | 2368 |
| 2012 | 2600 |
| 2013 | 2766 |
| 2014 | 2838 |
| 2015 | 2885 |
| 2016 | 2868 |
| 2017 | 2929 |
| 2018 | 3126 |
| 2019 | 3321 |
| 2020 | 4357 |
| 2021 | 4626 |
| 2022 | 3490 |
| 2023 | 2794 |
| 2024 | 2919 |