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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 1 |
| 1953 | 4 |
| 1954 | 6 |
| 1955 | 11 |
| 1956 | 17 |
| 1957 | 9 |
| 1958 | 12 |
| 1959 | 15 |
| 1960 | 7 |
| 1961 | 12 |
| 1962 | 7 |
| 1964 | 1 |
| 1965 | 24 |
| 1966 | 35 |
| 1967 | 53 |
| 1968 | 56 |
| 1969 | 58 |
| 1970 | 72 |
| 1971 | 75 |
| 1972 | 65 |
| 1973 | 62 |
| 1974 | 87 |
| 1975 | 85 |
| 1976 | 98 |
| 1977 | 80 |
| 1978 | 84 |
| 1979 | 74 |
| 1980 | 67 |
| 1981 | 52 |
| 1982 | 48 |
| 1983 | 34 |
| 1984 | 32 |
| 1985 | 41 |
| 1986 | 63 |
| 1987 | 77 |
| 1988 | 72 |
| 1989 | 65 |
| 1990 | 78 |
| 1991 | 62 |
| 1992 | 69 |
| 1993 | 77 |
| 1994 | 71 |
| 1995 | 71 |
| 1996 | 112 |
| 1997 | 133 |
| 1998 | 157 |
| 1999 | 200 |
| 2000 | 233 |
| 2001 | 213 |
| 2002 | 224 |
| 2003 | 288 |
| 2004 | 342 |
| 2005 | 419 |
| 2006 | 394 |
| 2007 | 446 |
| 2008 | 539 |
| 2009 | 595 |
| 2010 | 663 |
| 2011 | 770 |
| 2012 | 827 |
| 2013 | 942 |
| 2014 | 988 |
| 2015 | 981 |
| 2016 | 980 |
| 2017 | 934 |
| 2018 | 942 |
| 2019 | 972 |
| 2020 | 874 |
| 2021 | 753 |
| 2022 | 489 |
| 2023 | 493 |
| 2024 | 320 |