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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 1 |
| 1952 | 2 |
| 1955 | 1 |
| 1959 | 1 |
| 1960 | 1 |
| 1962 | 1 |
| 1963 | 2 |
| 1964 | 1 |
| 1965 | 4 |
| 1966 | 2 |
| 1967 | 3 |
| 1968 | 8 |
| 1969 | 10 |
| 1970 | 14 |
| 1971 | 11 |
| 1972 | 8 |
| 1973 | 10 |
| 1974 | 22 |
| 1975 | 17 |
| 1976 | 39 |
| 1977 | 18 |
| 1978 | 28 |
| 1979 | 27 |
| 1980 | 44 |
| 1981 | 40 |
| 1982 | 42 |
| 1983 | 39 |
| 1984 | 44 |
| 1985 | 46 |
| 1986 | 56 |
| 1987 | 52 |
| 1988 | 62 |
| 1989 | 75 |
| 1990 | 72 |
| 1991 | 77 |
| 1992 | 101 |
| 1993 | 125 |
| 1994 | 125 |
| 1995 | 99 |
| 1996 | 161 |
| 1997 | 147 |
| 1998 | 143 |
| 1999 | 125 |
| 2000 | 162 |
| 2001 | 201 |
| 2002 | 193 |
| 2003 | 208 |
| 2004 | 232 |
| 2005 | 275 |
| 2006 | 321 |
| 2007 | 329 |
| 2008 | 335 |
| 2009 | 375 |
| 2010 | 439 |
| 2011 | 520 |
| 2012 | 617 |
| 2013 | 622 |
| 2014 | 575 |
| 2015 | 638 |
| 2016 | 651 |
| 2017 | 703 |
| 2018 | 663 |
| 2019 | 891 |
| 2020 | 1113 |
| 2021 | 1265 |
| 2022 | 1216 |
| 2023 | 1049 |
| 2024 | 472 |