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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1958 | 1 |
| 1959 | 1 |
| 1960 | 1 |
| 1962 | 3 |
| 1963 | 1 |
| 1965 | 1 |
| 1966 | 1 |
| 1967 | 3 |
| 1968 | 2 |
| 1969 | 9 |
| 1970 | 9 |
| 1971 | 3 |
| 1972 | 8 |
| 1973 | 2 |
| 1974 | 6 |
| 1975 | 8 |
| 1976 | 5 |
| 1977 | 8 |
| 1978 | 15 |
| 1979 | 11 |
| 1980 | 8 |
| 1981 | 10 |
| 1982 | 12 |
| 1983 | 22 |
| 1984 | 20 |
| 1985 | 27 |
| 1986 | 26 |
| 1987 | 45 |
| 1988 | 46 |
| 1989 | 44 |
| 1990 | 54 |
| 1991 | 62 |
| 1992 | 48 |
| 1993 | 58 |
| 1994 | 70 |
| 1995 | 71 |
| 1996 | 84 |
| 1997 | 104 |
| 1998 | 97 |
| 1999 | 99 |
| 2000 | 106 |
| 2001 | 118 |
| 2002 | 140 |
| 2003 | 172 |
| 2004 | 205 |
| 2005 | 270 |
| 2006 | 323 |
| 2007 | 378 |
| 2008 | 437 |
| 2009 | 491 |
| 2010 | 590 |
| 2011 | 657 |
| 2012 | 727 |
| 2013 | 797 |
| 2014 | 949 |
| 2015 | 1041 |
| 2016 | 1086 |
| 2017 | 1205 |
| 2018 | 1324 |
| 2019 | 1480 |
| 2020 | 1824 |
| 2021 | 2007 |
| 2022 | 2247 |
| 2023 | 674 |