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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1964 | 2 |
| 1965 | 12 |
| 1966 | 36 |
| 1967 | 28 |
| 1968 | 31 |
| 1969 | 50 |
| 1970 | 33 |
| 1971 | 36 |
| 1972 | 31 |
| 1973 | 28 |
| 1974 | 23 |
| 1975 | 22 |
| 1976 | 37 |
| 1977 | 24 |
| 1978 | 48 |
| 1979 | 28 |
| 1980 | 31 |
| 1981 | 36 |
| 1982 | 41 |
| 1983 | 55 |
| 1984 | 52 |
| 1985 | 59 |
| 1986 | 43 |
| 1987 | 74 |
| 1988 | 62 |
| 1989 | 84 |
| 1990 | 81 |
| 1991 | 100 |
| 1992 | 92 |
| 1993 | 112 |
| 1994 | 88 |
| 1995 | 90 |
| 1996 | 96 |
| 1997 | 86 |
| 1998 | 98 |
| 1999 | 83 |
| 2000 | 98 |
| 2001 | 113 |
| 2002 | 115 |
| 2003 | 146 |
| 2004 | 175 |
| 2005 | 130 |
| 2006 | 196 |
| 2007 | 188 |
| 2008 | 183 |
| 2009 | 180 |
| 2010 | 160 |
| 2011 | 190 |
| 2012 | 204 |
| 2013 | 217 |
| 2014 | 283 |
| 2015 | 273 |
| 2016 | 225 |
| 2017 | 232 |
| 2018 | 220 |
| 2019 | 253 |
| 2020 | 285 |
| 2021 | 313 |
| 2022 | 319 |
| 2023 | 297 |
| 2024 | 251 |
| 2025 | 146 |