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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1971 | 1 |
| 1972 | 1 |
| 1973 | 1 |
| 1974 | 9 |
| 1975 | 17 |
| 1976 | 29 |
| 1977 | 30 |
| 1978 | 47 |
| 1979 | 58 |
| 1980 | 57 |
| 1981 | 75 |
| 1982 | 107 |
| 1983 | 125 |
| 1984 | 111 |
| 1985 | 112 |
| 1986 | 118 |
| 1987 | 138 |
| 1988 | 97 |
| 1989 | 87 |
| 1990 | 78 |
| 1991 | 84 |
| 1992 | 102 |
| 1993 | 77 |
| 1994 | 81 |
| 1995 | 86 |
| 1996 | 71 |
| 1997 | 94 |
| 1998 | 74 |
| 1999 | 79 |
| 2000 | 75 |
| 2001 | 67 |
| 2002 | 79 |
| 2003 | 86 |
| 2004 | 84 |
| 2005 | 75 |
| 2006 | 89 |
| 2007 | 109 |
| 2008 | 125 |
| 2009 | 82 |
| 2010 | 123 |
| 2011 | 102 |
| 2012 | 125 |
| 2013 | 132 |
| 2014 | 123 |
| 2015 | 104 |
| 2016 | 96 |
| 2017 | 94 |
| 2018 | 102 |
| 2019 | 83 |
| 2020 | 328 |
| 2021 | 56 |
| 2022 | 28 |
| 2023 | 17 |
| 2024 | 59 |
| 2025 | 48 |