Jan -2.2 -6.4 -4.3 -999 18 M1 O1a 100 
Feb 1.1 -3.8 -1.4 -999 16 M1 O1a 100 
Mar 5.7 -1.2 2.3 -999 13 M1 O1a 100 
Apr 10.7 1.6 6.2 -999 13 M1 O1a 80 
May 15.4 5.2 10.3 -999 13 M2 O1a 60 
Jun 18.6 8.8 13.7 -999 13 M2 O1a 40 
Jul 21.3 11.3 16.4 -999 12 M2 O1a 80 
Aug 21.1 11.4 16.3 -999 11 M2 O1a 60 
Sep 16.3 8.1 12.2 -999 11 M2 O1a 60 
Oct 9.1 3.7 6.4 -999 12 M1 O1a 60 
Nov 2.4 -1.3 0.6 -999 13 M1 O1a 100 
Dec -1 -4.8 -2.9 -999 15 M1 O1a 100