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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1963 | 1 |
| 1965 | 10 |
| 1966 | 28 |
| 1967 | 38 |
| 1968 | 54 |
| 1969 | 58 |
| 1970 | 63 |
| 1971 | 68 |
| 1972 | 64 |
| 1973 | 64 |
| 1974 | 43 |
| 1975 | 54 |
| 1976 | 44 |
| 1977 | 65 |
| 1978 | 45 |
| 1979 | 68 |
| 1980 | 52 |
| 1981 | 59 |
| 1982 | 75 |
| 1983 | 73 |
| 1984 | 78 |
| 1985 | 90 |
| 1986 | 93 |
| 1987 | 82 |
| 1988 | 101 |
| 1989 | 105 |
| 1990 | 94 |
| 1991 | 80 |
| 1992 | 73 |
| 1993 | 85 |
| 1994 | 77 |
| 1995 | 92 |
| 1996 | 107 |
| 1997 | 101 |
| 1998 | 116 |
| 1999 | 185 |
| 2000 | 185 |
| 2001 | 184 |
| 2002 | 192 |
| 2003 | 257 |
| 2004 | 234 |
| 2005 | 297 |
| 2006 | 324 |
| 2007 | 358 |
| 2008 | 351 |
| 2009 | 321 |
| 2010 | 343 |
| 2011 | 292 |
| 2012 | 333 |
| 2013 | 306 |
| 2014 | 340 |
| 2015 | 295 |
| 2016 | 299 |
| 2017 | 314 |
| 2018 | 307 |
| 2019 | 275 |
| 2020 | 353 |
| 2021 | 425 |
| 2022 | 372 |
| 2023 | 312 |
| 2024 | 122 |