ANNUAL MEAN VALUES FOR QUIET DAYS CHICHIJIMA YEAR D I H X Y Z F Deg Min Deg Min nT nT nT nT nT 1973 -3 2.5 *1 36 38.2 *1 32561 *1 32515 *1 -1727 *1 24214 *1 40577 *1 1974 -3 3.6 36 36.7 32574 32527 -1738 24203 40581 1975 -3 4.0 36 34.4 32595 32548 -1743 24184 40587 1976 -3 4.8 36 31.8 32622 32574 -1752 24167 40598 1977 -3 5.5 *2 36 29.8 *2 32650 *2 32602 *2 -1760 *2 24156 *3 40612 *3 1978 -3 6.9 36 28.2 32667 32619 -1774 24146 40622 1979 -3 7.4 36 26.0 *4 32693 *4 32644 *4 -1781 *4 24134 40636 *4 1980 -3 8.1 36 24.3 32721 32672 -1789 24130 40656 1981 -3 9.3 36 24.5 32724 32674 -1800 24133 40660 1982 -3 10.1 36 25.8 32719 32668 -1808 24149 40665 1983 -3 10.9 *5 36 26.0 *5 32737 *5 32686 *5 -1816 *5 24165 *5 40690 *5 1984 -3 14.2 *5 36 28.0 *5 32736 *5 32683 *5 -1848 *5 24195 *5 40707 *5 1985 -3 14.9 36 28.7 32748 32695 -1855 24215 40728 1986 -3 16.2 36 30.2 32753 32699 -1868 24239 40746 1987 -3 15.7 *6 36 31.2 32764 32712 *6 -1863 *6 24263 40770 1988 - *6 36 32.0 *7 32762 *7 - *6 - *6 24272 *7 40774 *7 1989 -3 19.3 *6 36 35.4 *7 32760 *7 32704 *6 -1898 *6 24319 *7 40801 *7 1990 -3 20.7 36 37.3 32764 32707 -1911 24351 40822 1991 -3 22.3 36 40.0 32760 32703 -1926 24389 40842 1992 -3 23.6 36 43.3 32761 32703 -1938 24438 40872 1993 -3 25.0 *8 36 47.2 *8 32759 *8 32700 *8 -1952 *8 24495 *8 40904 *8 1994 -3 26.4 *8 36 52.2 *8 32746 *8 32687 *8 -1964 *8 24559 *8 40933 *8 1995 -3 27.3 *9 36 55.1 *9 32747 *9 32687 *9 -1973 *9 24604 *9 40960 *9 1996 -3 29.8 *9 36 59.9 *9 32738 *9 32676 *9 -1996 *9 24668 *9 40991 *9 1997 -3 31.0 37 2.9 32727 32665 -2007 24706 41005 1998 -3 32.7 37 7.3 32700 32637 -2022 24749 41008 *10 1999 -3 33.6 *11 37 9.8 *11 32689 *11 32626 *11 -2029 *11 24780 *11 41018 *11 2000 -3 34.7 *12 37 12.5 *12 32666 *12 32602 *12 -2039 *12 24802 *12 41015 *12 2001 -3 34.8 37 13.4 32655 32592 -2040 24808 41010 2002 -3 35.1 37 14.5 32646 32583 -2041 24817 41008 2003 -3 36.0 37 16.0 32625 32560 -2048 24823 40996 2004 -3 37.0 37 15.9 32625 32560 -2058 24822 40994 2005 -3 37.7 37 16.9 32617 32551 -2065 24830 40992 2006 -3 38.9 37 17.4 32621 32554 -2075 24841 41002 2007 -3 40.6 37 18.8 32618 32550 -2091 24860 41012 2008 -3 42.5 37 20.1 32622 32554 -2110 24883 41029 2009 -3 44.9 37 21.8 32625 32556 -2133 24911 41049 2010 -3 47.9 37 23.8 32626 32554 -2162 24942 41068 2011 -3 51.3 37 26.0 32629 32555 -2194 24977 41091 2012 -3 54.9 37 28.4 32632 32556 -2228 25015 41117 2013 -3 58.7 37 29.9 32652 32573 -2266 25053 41156 2014 -4 2.4 37 30.5 32676 32595 -2302 25081 41192 2015 -4 6.5 37 31.7 32693 32609 -2343 25113 41225 2016 -4 10.7 37 32.1 32720 32633 -2384 25138 41262 2017 -4 14.7 *13 37 32.6 *13 32741 *13 32651 *13 -2423 *13 25162 *13 41292 2018 -4 18.4 37 31.7 32772 32679 -2461 25172 41323 2019 -4 22.3 37 29.8 32808 32712 -2501 25171 41352 2020 -4 26.2 37 26.7 32849 32751 -2541 25156 41375 *14 2021 -4 29.6 37 24.2 32879 32778 -2576 25141 41390 2022 -4 32.7 37 22.7 32900 32797 -2607 25135 41403 *15 *1 From 1973/01/01 to 1973/01/31 are missed. *2 From 1977/10/01 to 1977/10/31 are missed. *3 From 1977/05/01 to 1977/07/31 and from 1977/10/01 to 1977/10/31 are missed. *4 From 1979/07/18 to 1979/08/16 are missed. *5 From 1983/11/07 to 1984/03/31 are missed. *6 From 1987/04/01 to 1989/01/22 are missed. *7 From 1988/04/01 to 1989/01/22 are missed. *8 From 1993/12/07 to 1994/01/12 are missed. *9 From 1995/09/24 to 1996/05/12 are missed. *10 From 1998/01/09 to 1998/03/12 are missed. *11 From 1999/09/02 to 1999/11/17 are missed. *12 From 2000/09/15 to 2000/10/21 are missed. *13 From 2017/08/10 to 2017/09/22 are missed. *14 From 2020/07/01 to 2020/09/29 are missed. *15 From 2022/09/22 to 2022/10/26 are missed. Seasons are grouped as follows: Winter : January, February, November, December Equinox : March, April, September, October Summer : May, June, July, August