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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1957 | 1 |
| 1958 | 1 |
| 1959 | 1 |
| 1960 | 1 |
| 1962 | 2 |
| 1963 | 2 |
| 1964 | 3 |
| 1965 | 4 |
| 1966 | 3 |
| 1967 | 5 |
| 1968 | 7 |
| 1969 | 9 |
| 1970 | 4 |
| 1971 | 4 |
| 1972 | 4 |
| 1973 | 4 |
| 1974 | 8 |
| 1975 | 10 |
| 1976 | 7 |
| 1977 | 8 |
| 1978 | 11 |
| 1979 | 8 |
| 1980 | 8 |
| 1981 | 8 |
| 1982 | 7 |
| 1983 | 8 |
| 1984 | 21 |
| 1985 | 16 |
| 1986 | 15 |
| 1987 | 22 |
| 1988 | 33 |
| 1989 | 32 |
| 1990 | 34 |
| 1991 | 30 |
| 1992 | 35 |
| 1993 | 47 |
| 1994 | 52 |
| 1995 | 75 |
| 1996 | 79 |
| 1997 | 110 |
| 1998 | 138 |
| 1999 | 152 |
| 2000 | 162 |
| 2001 | 234 |
| 2002 | 280 |
| 2003 | 353 |
| 2004 | 427 |
| 2005 | 554 |
| 2006 | 645 |
| 2007 | 789 |
| 2008 | 886 |
| 2009 | 1046 |
| 2010 | 1327 |
| 2011 | 1588 |
| 2012 | 1717 |
| 2013 | 1867 |
| 2014 | 2000 |
| 2015 | 2143 |
| 2016 | 2112 |
| 2017 | 2069 |
| 2018 | 2017 |
| 2019 | 2057 |
| 2020 | 2180 |
| 2021 | 2429 |
| 2022 | 2159 |
| 2023 | 546 |