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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1939 | 2 |
| 1947 | 2 |
| 1949 | 1 |
| 1955 | 1 |
| 1958 | 2 |
| 1959 | 1 |
| 1960 | 2 |
| 1962 | 3 |
| 1963 | 3 |
| 1964 | 2 |
| 1965 | 3 |
| 1966 | 4 |
| 1967 | 5 |
| 1968 | 4 |
| 1969 | 12 |
| 1970 | 10 |
| 1971 | 3 |
| 1972 | 13 |
| 1973 | 12 |
| 1974 | 14 |
| 1975 | 11 |
| 1976 | 17 |
| 1977 | 16 |
| 1978 | 22 |
| 1979 | 24 |
| 1980 | 32 |
| 1981 | 34 |
| 1982 | 24 |
| 1983 | 17 |
| 1984 | 26 |
| 1985 | 45 |
| 1986 | 36 |
| 1987 | 50 |
| 1988 | 63 |
| 1989 | 85 |
| 1990 | 72 |
| 1991 | 90 |
| 1992 | 97 |
| 1993 | 109 |
| 1994 | 136 |
| 1995 | 132 |
| 1996 | 145 |
| 1997 | 158 |
| 1998 | 179 |
| 1999 | 171 |
| 2000 | 203 |
| 2001 | 234 |
| 2002 | 223 |
| 2003 | 257 |
| 2004 | 395 |
| 2005 | 437 |
| 2006 | 539 |
| 2007 | 622 |
| 2008 | 762 |
| 2009 | 879 |
| 2010 | 993 |
| 2011 | 1164 |
| 2012 | 1308 |
| 2013 | 1353 |
| 2014 | 1492 |
| 2015 | 1608 |
| 2016 | 1711 |
| 2017 | 1839 |
| 2018 | 1991 |
| 2019 | 2130 |
| 2020 | 2389 |
| 2021 | 2711 |
| 2022 | 2891 |
| 2023 | 45 |