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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1968 | 1 |
| 1969 | 1 |
| 1970 | 1 |
| 1972 | 2 |
| 1973 | 1 |
| 1974 | 2 |
| 1975 | 2 |
| 1976 | 2 |
| 1977 | 3 |
| 1978 | 2 |
| 1979 | 3 |
| 1980 | 1 |
| 1981 | 2 |
| 1982 | 3 |
| 1983 | 3 |
| 1984 | 1 |
| 1985 | 4 |
| 1986 | 1 |
| 1987 | 36 |
| 1988 | 58 |
| 1989 | 54 |
| 1990 | 59 |
| 1991 | 74 |
| 1992 | 68 |
| 1993 | 63 |
| 1994 | 71 |
| 1995 | 74 |
| 1996 | 78 |
| 1997 | 77 |
| 1998 | 81 |
| 1999 | 104 |
| 2000 | 111 |
| 2001 | 83 |
| 2002 | 132 |
| 2003 | 130 |
| 2004 | 124 |
| 2005 | 160 |
| 2006 | 155 |
| 2007 | 169 |
| 2008 | 189 |
| 2009 | 180 |
| 2010 | 201 |
| 2011 | 208 |
| 2012 | 194 |
| 2013 | 206 |
| 2014 | 413 |
| 2015 | 595 |
| 2016 | 690 |
| 2017 | 789 |
| 2018 | 805 |
| 2019 | 803 |
| 2020 | 888 |
| 2021 | 947 |
| 2022 | 821 |
| 2023 | 865 |
| 2024 | 407 |