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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1957 | 3 |
| 1958 | 1 |
| 1959 | 1 |
| 1961 | 1 |
| 1962 | 1 |
| 1964 | 2 |
| 1966 | 4 |
| 1967 | 4 |
| 1968 | 8 |
| 1969 | 5 |
| 1970 | 3 |
| 1971 | 6 |
| 1972 | 8 |
| 1973 | 25 |
| 1974 | 18 |
| 1975 | 17 |
| 1976 | 20 |
| 1977 | 34 |
| 1978 | 27 |
| 1979 | 35 |
| 1980 | 30 |
| 1981 | 43 |
| 1982 | 54 |
| 1983 | 54 |
| 1984 | 34 |
| 1985 | 28 |
| 1986 | 37 |
| 1987 | 40 |
| 1988 | 29 |
| 1989 | 34 |
| 1990 | 40 |
| 1991 | 39 |
| 1992 | 46 |
| 1993 | 44 |
| 1994 | 48 |
| 1995 | 59 |
| 1996 | 60 |
| 1997 | 54 |
| 1998 | 72 |
| 1999 | 59 |
| 2000 | 76 |
| 2001 | 101 |
| 2002 | 100 |
| 2003 | 117 |
| 2004 | 106 |
| 2005 | 107 |
| 2006 | 140 |
| 2007 | 170 |
| 2008 | 165 |
| 2009 | 213 |
| 2010 | 245 |
| 2011 | 298 |
| 2012 | 302 |
| 2013 | 352 |
| 2014 | 408 |
| 2015 | 456 |
| 2016 | 467 |
| 2017 | 527 |
| 2018 | 606 |
| 2019 | 670 |
| 2020 | 895 |
| 2021 | 1046 |
| 2022 | 1173 |
| 2023 | 571 |