January 1,682,450 1,611,320 3,293,770 Peak winter

February 1,538,720 1,473,850 3,012,570 Peak (28/29 days)

March 1,397,180 1,338,410 2,735,590 Shoulder

April 1,264,910 1,211,750 2,476,660 Shoulder / pre-summer

May 982,640 941,130 1,923,770 Transition

June 845,290 809,680 1,654,970 Summer low

July 712,850 682,750 1,395,600 Deep summer low

August 698,420 668,930 1,367,350 Deep summer low

September 837,110 801,870 1,638,980 Improving

October 1,118,760 1,071,680 2,190,440 Shoulder recovery

November 1,258,930 1,206,220 2,465,150 Strong pre-winter

December 1,662,640 1,592,710 3,255,350 Peak winter