Jan -4.3 -12.8 -8.6 -999 6 M1 O1a 100 
Feb .8 -9.1 -4.2 -999 7 M1 O1a 100 
Mar 7 -4.8 1.1 -999 7 M1 O1a 100 
Apr 13.4 -1 6.3 -999 8 M1 O1b 80 
May 18.3 3.5 10.9 -999 7 M2 O1b 60 
Jun 21.2 7.3 14.3 -999 6 M2 O1b 40 
Jul 24 9.3 16.7 -999 5 M2 O1b 80 
Aug 23.7 8.6 16.2 -999 5 M2 O1b 60 
Sep 18.4 4.5 11.5 -999 5 M2 O1b 60 
Oct 10.7 0.1 5.4 -999 6 M1 O1b 60 
Nov 2 -5.2 -1.6 -999 7 M1 O1a 100 
Dec -3.1 -10.7 -6.9 -999 7 M1 O1a 100