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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1947 | 2 |
| 1948 | 1 |
| 1951 | 1 |
| 1952 | 1 |
| 1954 | 1 |
| 1955 | 3 |
| 1957 | 2 |
| 1958 | 8 |
| 1959 | 8 |
| 1960 | 7 |
| 1961 | 3 |
| 1962 | 8 |
| 1963 | 7 |
| 1964 | 14 |
| 1965 | 4 |
| 1966 | 1 |
| 1968 | 3 |
| 1969 | 3 |
| 1971 | 5 |
| 1972 | 7 |
| 1973 | 6 |
| 1974 | 15 |
| 1975 | 9 |
| 1976 | 7 |
| 1977 | 10 |
| 1978 | 8 |
| 1979 | 8 |
| 1980 | 4 |
| 1981 | 16 |
| 1982 | 13 |
| 1983 | 18 |
| 1984 | 21 |
| 1985 | 40 |
| 1986 | 41 |
| 1987 | 43 |
| 1988 | 51 |
| 1989 | 50 |
| 1990 | 64 |
| 1991 | 97 |
| 1992 | 95 |
| 1993 | 133 |
| 1994 | 168 |
| 1995 | 205 |
| 1996 | 196 |
| 1997 | 248 |
| 1998 | 287 |
| 1999 | 340 |
| 2000 | 400 |
| 2001 | 393 |
| 2002 | 512 |
| 2003 | 656 |
| 2004 | 926 |
| 2005 | 1105 |
| 2006 | 1365 |
| 2007 | 1584 |
| 2008 | 1968 |
| 2009 | 2142 |
| 2010 | 2576 |
| 2011 | 3073 |
| 2012 | 3662 |
| 2013 | 4251 |
| 2014 | 5011 |
| 2015 | 5999 |
| 2016 | 6172 |
| 2017 | 6942 |
| 2018 | 7920 |
| 2019 | 9093 |
| 2020 | 10745 |
| 2021 | 12148 |
| 2022 | 12840 |
| 2023 | 197 |