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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1948 | 2 |
| 1949 | 1 |
| 1954 | 1 |
| 1956 | 2 |
| 1961 | 1 |
| 1964 | 5 |
| 1965 | 81 |
| 1966 | 142 |
| 1967 | 177 |
| 1968 | 244 |
| 1969 | 281 |
| 1970 | 262 |
| 1971 | 331 |
| 1972 | 350 |
| 1973 | 412 |
| 1974 | 451 |
| 1975 | 583 |
| 1976 | 667 |
| 1977 | 695 |
| 1978 | 778 |
| 1979 | 847 |
| 1980 | 835 |
| 1981 | 809 |
| 1982 | 914 |
| 1983 | 1077 |
| 1984 | 1223 |
| 1985 | 1311 |
| 1986 | 1254 |
| 1987 | 1393 |
| 1988 | 1622 |
| 1989 | 1647 |
| 1990 | 1644 |
| 1991 | 1886 |
| 1992 | 1747 |
| 1993 | 1710 |
| 1994 | 1519 |
| 1995 | 1747 |
| 1996 | 1572 |
| 1997 | 1560 |
| 1998 | 1430 |
| 1999 | 1552 |
| 2000 | 1577 |
| 2001 | 1597 |
| 2002 | 1585 |
| 2003 | 1572 |
| 2004 | 1578 |
| 2005 | 1915 |
| 2006 | 2168 |
| 2007 | 2297 |
| 2008 | 2366 |
| 2009 | 2415 |
| 2010 | 2594 |
| 2011 | 2691 |
| 2012 | 2844 |
| 2013 | 3087 |
| 2014 | 3104 |
| 2015 | 2992 |
| 2016 | 2790 |
| 2017 | 2948 |
| 2018 | 2799 |
| 2019 | 2449 |
| 2020 | 2004 |
| 2021 | 1206 |
| 2022 | 190 |
| 2023 | 124 |
| 2024 | 514 |