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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1954 | 1 |
| 1957 | 1 |
| 1959 | 1 |
| 1963 | 1 |
| 1965 | 6 |
| 1966 | 13 |
| 1967 | 29 |
| 1968 | 52 |
| 1969 | 79 |
| 1970 | 66 |
| 1971 | 83 |
| 1972 | 74 |
| 1973 | 90 |
| 1974 | 90 |
| 1975 | 74 |
| 1976 | 73 |
| 1977 | 63 |
| 1978 | 61 |
| 1979 | 68 |
| 1980 | 89 |
| 1981 | 64 |
| 1982 | 124 |
| 1983 | 220 |
| 1984 | 199 |
| 1985 | 192 |
| 1986 | 198 |
| 1987 | 202 |
| 1988 | 224 |
| 1989 | 259 |
| 1990 | 197 |
| 1991 | 197 |
| 1992 | 147 |
| 1993 | 109 |
| 1994 | 124 |
| 1995 | 124 |
| 1996 | 142 |
| 1997 | 145 |
| 1998 | 143 |
| 1999 | 168 |
| 2000 | 181 |
| 2001 | 237 |
| 2002 | 292 |
| 2003 | 339 |
| 2004 | 336 |
| 2005 | 399 |
| 2006 | 476 |
| 2007 | 544 |
| 2008 | 757 |
| 2009 | 863 |
| 2010 | 986 |
| 2011 | 1027 |
| 2012 | 1177 |
| 2013 | 1143 |
| 2014 | 1295 |
| 2015 | 1455 |
| 2016 | 1552 |
| 2017 | 1584 |
| 2018 | 1677 |
| 2019 | 1861 |
| 2020 | 1610 |
| 2021 | 1053 |
| 2022 | 179 |
| 2023 | 43 |
| 2024 | 10 |