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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1951 | 16 |
| 1952 | 32 |
| 1953 | 36 |
| 1954 | 30 |
| 1955 | 21 |
| 1956 | 37 |
| 1957 | 32 |
| 1958 | 33 |
| 1959 | 7 |
| 1964 | 13 |
| 1965 | 94 |
| 1966 | 175 |
| 1967 | 183 |
| 1968 | 130 |
| 1969 | 168 |
| 1970 | 175 |
| 1971 | 216 |
| 1972 | 257 |
| 1973 | 396 |
| 1974 | 515 |
| 1975 | 578 |
| 1976 | 612 |
| 1977 | 642 |
| 1978 | 532 |
| 1979 | 612 |
| 1980 | 718 |
| 1981 | 787 |
| 1982 | 804 |
| 1983 | 892 |
| 1984 | 1015 |
| 1985 | 1121 |
| 1986 | 1051 |
| 1987 | 1298 |
| 1988 | 1476 |
| 1989 | 1795 |
| 1990 | 2083 |
| 1991 | 2256 |
| 1992 | 2446 |
| 1993 | 2702 |
| 1994 | 2766 |
| 1995 | 2999 |
| 1996 | 3014 |
| 1997 | 3008 |
| 1998 | 2979 |
| 1999 | 3104 |
| 2000 | 3370 |
| 2001 | 3708 |
| 2002 | 3814 |
| 2003 | 3940 |
| 2004 | 4218 |
| 2005 | 4666 |
| 2006 | 5224 |
| 2007 | 5507 |
| 2008 | 6142 |
| 2009 | 6372 |
| 2010 | 7327 |
| 2011 | 7871 |
| 2012 | 8547 |
| 2013 | 9268 |
| 2014 | 9548 |
| 2015 | 9645 |
| 2016 | 9838 |
| 2017 | 9837 |
| 2018 | 10159 |
| 2019 | 10066 |
| 2020 | 8981 |
| 2021 | 7219 |
| 2022 | 1092 |
| 2023 | 300 |
| 2024 | 8187 |
| 2025 | 7089 |
| 2026 | 4 |