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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1955 | 6 |
| 1956 | 2 |
| 1957 | 1 |
| 1958 | 4 |
| 1960 | 5 |
| 1961 | 4 |
| 1962 | 3 |
| 1965 | 1 |
| 1972 | 2 |
| 1973 | 1 |
| 1974 | 7 |
| 1975 | 29 |
| 1976 | 26 |
| 1977 | 43 |
| 1978 | 49 |
| 1979 | 58 |
| 1980 | 55 |
| 1981 | 58 |
| 1982 | 45 |
| 1983 | 73 |
| 1984 | 65 |
| 1985 | 71 |
| 1986 | 67 |
| 1987 | 111 |
| 1988 | 85 |
| 1989 | 103 |
| 1990 | 159 |
| 1991 | 169 |
| 1992 | 167 |
| 1993 | 215 |
| 1994 | 164 |
| 1995 | 237 |
| 1996 | 287 |
| 1997 | 365 |
| 1998 | 476 |
| 1999 | 576 |
| 2000 | 547 |
| 2001 | 492 |
| 2002 | 585 |
| 2003 | 598 |
| 2004 | 877 |
| 2005 | 1076 |
| 2006 | 1274 |
| 2007 | 1438 |
| 2008 | 1601 |
| 2009 | 1900 |
| 2010 | 1819 |
| 2011 | 2053 |
| 2012 | 2319 |
| 2013 | 2786 |
| 2014 | 2798 |
| 2015 | 2785 |
| 2016 | 2792 |
| 2017 | 2886 |
| 2018 | 3140 |
| 2019 | 3167 |
| 2020 | 2367 |
| 2021 | 1362 |
| 2022 | 411 |
| 2023 | 376 |
| 2024 | 332 |