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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1965 | 1 |
| 1968 | 2 |
| 1969 | 1 |
| 1974 | 7 |
| 1975 | 24 |
| 1976 | 23 |
| 1977 | 19 |
| 1978 | 48 |
| 1979 | 52 |
| 1980 | 39 |
| 1981 | 53 |
| 1982 | 48 |
| 1983 | 66 |
| 1984 | 69 |
| 1985 | 83 |
| 1986 | 132 |
| 1987 | 129 |
| 1988 | 211 |
| 1989 | 250 |
| 1990 | 301 |
| 1991 | 409 |
| 1992 | 430 |
| 1993 | 440 |
| 1994 | 618 |
| 1995 | 629 |
| 1996 | 621 |
| 1997 | 989 |
| 1998 | 939 |
| 1999 | 936 |
| 2000 | 1100 |
| 2001 | 939 |
| 2002 | 1439 |
| 2003 | 1900 |
| 2004 | 2919 |
| 2005 | 4390 |
| 2006 | 5121 |
| 2007 | 5676 |
| 2008 | 6325 |
| 2009 | 7075 |
| 2010 | 7279 |
| 2011 | 7274 |
| 2012 | 7933 |
| 2013 | 8417 |
| 2014 | 8329 |
| 2015 | 7649 |
| 2016 | 6666 |
| 2017 | 5801 |
| 2018 | 6554 |
| 2019 | 6154 |
| 2020 | 4171 |
| 2021 | 2836 |
| 2022 | 4472 |
| 2023 | 3623 |
| 2024 | 8207 |
| 2025 | 5944 |