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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1968 | 45 |
| 1969 | 44 |
| 1970 | 44 |
| 1971 | 33 |
| 1972 | 82 |
| 1973 | 92 |
| 1974 | 80 |
| 1975 | 67 |
| 1976 | 54 |
| 1977 | 91 |
| 1978 | 107 |
| 1979 | 60 |
| 1980 | 59 |
| 1981 | 101 |
| 1982 | 111 |
| 1983 | 100 |
| 1984 | 73 |
| 1985 | 74 |
| 1986 | 107 |
| 1987 | 113 |
| 1988 | 85 |
| 1989 | 100 |
| 1990 | 173 |
| 1991 | 83 |
| 1992 | 99 |
| 1993 | 80 |
| 1994 | 82 |
| 1995 | 78 |
| 1996 | 93 |
| 1997 | 123 |
| 1998 | 119 |
| 1999 | 125 |
| 2000 | 90 |
| 2001 | 88 |
| 2002 | 69 |
| 2003 | 62 |
| 2004 | 78 |
| 2005 | 83 |
| 2006 | 88 |
| 2007 | 100 |
| 2008 | 98 |
| 2009 | 96 |
| 2010 | 111 |
| 2011 | 118 |
| 2012 | 103 |
| 2013 | 74 |
| 2014 | 73 |
| 2015 | 78 |
| 2016 | 73 |
| 2017 | 79 |
| 2018 | 142 |
| 2019 | 187 |
| 2020 | 163 |
| 2021 | 123 |
| 2022 | 73 |
| 2023 | 68 |
| 2024 | 31 |