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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1960 | 1 |
| 1961 | 3 |
| 1962 | 1 |
| 1963 | 4 |
| 1964 | 3 |
| 1965 | 3 |
| 1967 | 1 |
| 1968 | 5 |
| 1969 | 7 |
| 1970 | 9 |
| 1971 | 4 |
| 1972 | 9 |
| 1973 | 9 |
| 1974 | 14 |
| 1975 | 6 |
| 1976 | 9 |
| 1977 | 7 |
| 1978 | 11 |
| 1979 | 9 |
| 1980 | 48 |
| 1981 | 99 |
| 1982 | 105 |
| 1983 | 104 |
| 1984 | 89 |
| 1985 | 93 |
| 1986 | 116 |
| 1987 | 119 |
| 1988 | 138 |
| 1989 | 141 |
| 1990 | 161 |
| 1991 | 177 |
| 1992 | 171 |
| 1993 | 225 |
| 1994 | 217 |
| 1995 | 218 |
| 1996 | 292 |
| 1997 | 329 |
| 1998 | 412 |
| 1999 | 427 |
| 2000 | 488 |
| 2001 | 563 |
| 2002 | 636 |
| 2003 | 821 |
| 2004 | 994 |
| 2005 | 1242 |
| 2006 | 1590 |
| 2007 | 2137 |
| 2008 | 2871 |
| 2009 | 3388 |
| 2010 | 3792 |
| 2011 | 4251 |
| 2012 | 4539 |
| 2013 | 4817 |
| 2014 | 4985 |
| 2015 | 5061 |
| 2016 | 5226 |
| 2017 | 5054 |
| 2018 | 5129 |
| 2019 | 4946 |
| 2020 | 5245 |
| 2021 | 5543 |
| 2022 | 5096 |
| 2023 | 4895 |
| 2024 | 4007 |
| 2025 | 1312 |