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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 1 |
| 1966 | 8 |
| 1967 | 9 |
| 1968 | 22 |
| 1969 | 15 |
| 1970 | 17 |
| 1971 | 20 |
| 1972 | 29 |
| 1973 | 20 |
| 1974 | 21 |
| 1975 | 24 |
| 1976 | 22 |
| 1977 | 27 |
| 1978 | 37 |
| 1979 | 39 |
| 1980 | 42 |
| 1981 | 39 |
| 1982 | 53 |
| 1983 | 52 |
| 1984 | 62 |
| 1985 | 66 |
| 1986 | 60 |
| 1987 | 70 |
| 1988 | 62 |
| 1989 | 70 |
| 1990 | 66 |
| 1991 | 87 |
| 1992 | 88 |
| 1993 | 96 |
| 1994 | 76 |
| 1995 | 80 |
| 1996 | 110 |
| 1997 | 99 |
| 1998 | 131 |
| 1999 | 154 |
| 2000 | 168 |
| 2001 | 147 |
| 2002 | 119 |
| 2003 | 158 |
| 2004 | 143 |
| 2005 | 154 |
| 2006 | 157 |
| 2007 | 173 |
| 2008 | 171 |
| 2009 | 185 |
| 2010 | 193 |
| 2011 | 173 |
| 2012 | 181 |
| 2013 | 176 |
| 2014 | 168 |
| 2015 | 187 |
| 2016 | 145 |
| 2017 | 132 |
| 2018 | 136 |
| 2019 | 139 |
| 2020 | 210 |
| 2021 | 336 |
| 2022 | 449 |
| 2023 | 281 |
| 2024 | 192 |
| 2025 | 95 |