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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 3 |
| 1965 | 6 |
| 1966 | 18 |
| 1967 | 22 |
| 1968 | 21 |
| 1969 | 34 |
| 1970 | 40 |
| 1971 | 35 |
| 1972 | 24 |
| 1973 | 36 |
| 1974 | 35 |
| 1975 | 29 |
| 1976 | 39 |
| 1977 | 58 |
| 1978 | 42 |
| 1979 | 34 |
| 1980 | 44 |
| 1981 | 46 |
| 1982 | 40 |
| 1983 | 52 |
| 1984 | 47 |
| 1985 | 62 |
| 1986 | 53 |
| 1987 | 48 |
| 1988 | 63 |
| 1989 | 72 |
| 1990 | 143 |
| 1991 | 141 |
| 1992 | 164 |
| 1993 | 173 |
| 1994 | 201 |
| 1995 | 237 |
| 1996 | 232 |
| 1997 | 279 |
| 1998 | 281 |
| 1999 | 380 |
| 2000 | 499 |
| 2001 | 587 |
| 2002 | 770 |
| 2003 | 998 |
| 2004 | 1331 |
| 2005 | 1554 |
| 2006 | 1789 |
| 2007 | 2192 |
| 2008 | 2448 |
| 2009 | 2623 |
| 2010 | 2811 |
| 2011 | 3050 |
| 2012 | 3633 |
| 2013 | 4091 |
| 2014 | 3958 |
| 2015 | 3899 |
| 2016 | 3777 |
| 2017 | 3622 |
| 2018 | 3655 |
| 2019 | 3728 |
| 2020 | 3908 |
| 2021 | 3902 |
| 2022 | 3802 |
| 2023 | 3429 |
| 2024 | 1027 |