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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 16 |
| 1952 | 35 |
| 1953 | 50 |
| 1954 | 55 |
| 1955 | 46 |
| 1956 | 42 |
| 1957 | 32 |
| 1958 | 33 |
| 1959 | 7 |
| 1964 | 13 |
| 1965 | 100 |
| 1966 | 211 |
| 1967 | 344 |
| 1968 | 364 |
| 1969 | 461 |
| 1970 | 413 |
| 1971 | 529 |
| 1972 | 621 |
| 1973 | 727 |
| 1974 | 820 |
| 1975 | 894 |
| 1976 | 895 |
| 1977 | 895 |
| 1978 | 860 |
| 1979 | 922 |
| 1980 | 1075 |
| 1981 | 1099 |
| 1982 | 1154 |
| 1983 | 1276 |
| 1984 | 1455 |
| 1985 | 1538 |
| 1986 | 1583 |
| 1987 | 1674 |
| 1988 | 1881 |
| 1989 | 2202 |
| 1990 | 2415 |
| 1991 | 2639 |
| 1992 | 2881 |
| 1993 | 3090 |
| 1994 | 3184 |
| 1995 | 3447 |
| 1996 | 3443 |
| 1997 | 3485 |
| 1998 | 3514 |
| 1999 | 3676 |
| 2000 | 4076 |
| 2001 | 4380 |
| 2002 | 4528 |
| 2003 | 4655 |
| 2004 | 3814 |
| 2005 | 2216 |
| 2006 | 2182 |
| 2007 | 2365 |
| 2008 | 2375 |
| 2009 | 2351 |
| 2010 | 2510 |
| 2011 | 2627 |
| 2012 | 2786 |
| 2013 | 2861 |
| 2014 | 2888 |
| 2015 | 2959 |
| 2016 | 2930 |
| 2017 | 2763 |
| 2018 | 2802 |
| 2019 | 2755 |
| 2020 | 2284 |
| 2021 | 1703 |
| 2022 | 239 |
| 2023 | 19 |
| 2024 | 83 |