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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1960 | 10 |
| 1961 | 69 |
| 1962 | 71 |
| 1963 | 85 |
| 1964 | 105 |
| 1965 | 115 |
| 1966 | 94 |
| 1967 | 101 |
| 1968 | 59 |
| 1969 | 49 |
| 1970 | 50 |
| 1971 | 60 |
| 1972 | 63 |
| 1973 | 69 |
| 1974 | 95 |
| 1975 | 95 |
| 1976 | 102 |
| 1977 | 128 |
| 1978 | 131 |
| 1979 | 142 |
| 1980 | 127 |
| 1981 | 137 |
| 1982 | 151 |
| 1983 | 160 |
| 1984 | 156 |
| 1985 | 155 |
| 1986 | 159 |
| 1987 | 163 |
| 1988 | 180 |
| 1989 | 212 |
| 1990 | 203 |
| 1991 | 200 |
| 1992 | 194 |
| 1993 | 213 |
| 1994 | 239 |
| 1995 | 201 |
| 1996 | 218 |
| 1997 | 242 |
| 1998 | 199 |
| 1999 | 224 |
| 2000 | 286 |
| 2001 | 302 |
| 2002 | 266 |
| 2003 | 293 |
| 2004 | 309 |
| 2005 | 345 |
| 2006 | 349 |
| 2007 | 457 |
| 2008 | 449 |
| 2009 | 528 |
| 2010 | 500 |
| 2011 | 578 |
| 2012 | 615 |
| 2013 | 674 |
| 2014 | 613 |
| 2015 | 564 |
| 2016 | 590 |
| 2017 | 523 |
| 2018 | 571 |
| 2019 | 600 |
| 2020 | 594 |
| 2021 | 580 |
| 2022 | 455 |
| 2023 | 398 |
| 2024 | 161 |