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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 1 |
| 1965 | 4 |
| 1966 | 5 |
| 1967 | 6 |
| 1968 | 12 |
| 1969 | 4 |
| 1970 | 12 |
| 1971 | 4 |
| 1972 | 10 |
| 1973 | 4 |
| 1974 | 5 |
| 1975 | 18 |
| 1976 | 15 |
| 1977 | 16 |
| 1978 | 18 |
| 1979 | 14 |
| 1980 | 20 |
| 1981 | 15 |
| 1982 | 25 |
| 1983 | 47 |
| 1984 | 42 |
| 1985 | 54 |
| 1986 | 59 |
| 1987 | 66 |
| 1988 | 65 |
| 1989 | 55 |
| 1990 | 52 |
| 1991 | 65 |
| 1992 | 78 |
| 1993 | 48 |
| 1994 | 84 |
| 1995 | 54 |
| 1996 | 62 |
| 1997 | 63 |
| 1998 | 78 |
| 1999 | 72 |
| 2000 | 62 |
| 2001 | 67 |
| 2002 | 70 |
| 2003 | 85 |
| 2004 | 82 |
| 2005 | 93 |
| 2006 | 80 |
| 2007 | 114 |
| 2008 | 144 |
| 2009 | 145 |
| 2010 | 147 |
| 2011 | 173 |
| 2012 | 175 |
| 2013 | 164 |
| 2014 | 173 |
| 2015 | 177 |
| 2016 | 199 |
| 2017 | 182 |
| 2018 | 195 |
| 2019 | 229 |
| 2020 | 266 |
| 2021 | 310 |
| 2022 | 258 |
| 2023 | 311 |
| 2024 | 143 |