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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1949 | 2 |
| 1951 | 2 |
| 1952 | 1 |
| 1953 | 5 |
| 1955 | 2 |
| 1959 | 6 |
| 1960 | 9 |
| 1961 | 1 |
| 1962 | 2 |
| 1964 | 3 |
| 1965 | 3 |
| 1966 | 4 |
| 1967 | 2 |
| 1968 | 2 |
| 1969 | 4 |
| 1970 | 6 |
| 1971 | 4 |
| 1972 | 9 |
| 1973 | 9 |
| 1974 | 9 |
| 1975 | 15 |
| 1976 | 23 |
| 1977 | 28 |
| 1978 | 31 |
| 1979 | 33 |
| 1980 | 61 |
| 1981 | 74 |
| 1982 | 86 |
| 1983 | 81 |
| 1984 | 110 |
| 1985 | 116 |
| 1986 | 148 |
| 1987 | 168 |
| 1988 | 163 |
| 1989 | 213 |
| 1990 | 209 |
| 1991 | 236 |
| 1992 | 285 |
| 1993 | 339 |
| 1994 | 425 |
| 1995 | 448 |
| 1996 | 471 |
| 1997 | 468 |
| 1998 | 551 |
| 1999 | 621 |
| 2000 | 709 |
| 2001 | 790 |
| 2002 | 786 |
| 2003 | 828 |
| 2004 | 1003 |
| 2005 | 1137 |
| 2006 | 1258 |
| 2007 | 1483 |
| 2008 | 1710 |
| 2009 | 1841 |
| 2010 | 2281 |
| 2011 | 2552 |
| 2012 | 2923 |
| 2013 | 3265 |
| 2014 | 3620 |
| 2015 | 4222 |
| 2016 | 4664 |
| 2017 | 4830 |
| 2018 | 5617 |
| 2019 | 6315 |
| 2020 | 7911 |
| 2021 | 9039 |
| 2022 | 9122 |
| 2023 | 4362 |