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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1961 | 13 |
| 1962 | 20 |
| 1963 | 17 |
| 1964 | 17 |
| 1965 | 18 |
| 1966 | 21 |
| 1967 | 28 |
| 1968 | 24 |
| 1969 | 37 |
| 1970 | 21 |
| 1971 | 23 |
| 1972 | 21 |
| 1973 | 26 |
| 1974 | 30 |
| 1975 | 40 |
| 1976 | 52 |
| 1977 | 54 |
| 1978 | 52 |
| 1979 | 66 |
| 1980 | 58 |
| 1981 | 50 |
| 1982 | 55 |
| 1983 | 60 |
| 1984 | 58 |
| 1985 | 81 |
| 1986 | 97 |
| 1987 | 116 |
| 1988 | 117 |
| 1989 | 100 |
| 1990 | 108 |
| 1991 | 110 |
| 1992 | 98 |
| 1993 | 115 |
| 1994 | 128 |
| 1995 | 128 |
| 1996 | 112 |
| 1997 | 115 |
| 1998 | 117 |
| 1999 | 119 |
| 2000 | 137 |
| 2001 | 174 |
| 2002 | 212 |
| 2003 | 186 |
| 2004 | 186 |
| 2005 | 230 |
| 2006 | 251 |
| 2007 | 281 |
| 2008 | 305 |
| 2009 | 299 |
| 2010 | 244 |
| 2011 | 246 |
| 2012 | 259 |
| 2013 | 261 |
| 2014 | 251 |
| 2015 | 240 |
| 2016 | 260 |
| 2017 | 257 |
| 2018 | 231 |
| 2019 | 268 |
| 2020 | 330 |
| 2021 | 212 |
| 2022 | 176 |
| 2023 | 181 |
| 2024 | 62 |