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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1972 | 3 |
| 1973 | 2 |
| 1975 | 21 |
| 1976 | 18 |
| 1977 | 29 |
| 1978 | 37 |
| 1979 | 52 |
| 1980 | 44 |
| 1981 | 38 |
| 1982 | 44 |
| 1983 | 28 |
| 1984 | 31 |
| 1985 | 46 |
| 1986 | 39 |
| 1987 | 47 |
| 1988 | 48 |
| 1989 | 57 |
| 1990 | 41 |
| 1991 | 54 |
| 1992 | 51 |
| 1993 | 65 |
| 1994 | 64 |
| 1995 | 79 |
| 1996 | 82 |
| 1997 | 85 |
| 1998 | 89 |
| 1999 | 114 |
| 2000 | 102 |
| 2001 | 144 |
| 2002 | 128 |
| 2003 | 223 |
| 2004 | 419 |
| 2005 | 530 |
| 2006 | 642 |
| 2007 | 765 |
| 2008 | 760 |
| 2009 | 878 |
| 2010 | 834 |
| 2011 | 871 |
| 2012 | 942 |
| 2013 | 900 |
| 2014 | 899 |
| 2015 | 913 |
| 2016 | 972 |
| 2017 | 969 |
| 2018 | 924 |
| 2019 | 1002 |
| 2020 | 988 |
| 2021 | 942 |
| 2022 | 782 |
| 2023 | 651 |
| 2024 | 207 |