2015	2016	%chg
January		655		634		-3.2%
February	615		612		-0.5%
March		721		720		-0.1%
April		742		605		-18.5%
May			635		554		-12.8%
June		643		509		-20.8%
July		696		569		-18.2%
August		693		598		-13.7%
September	797		610		-23.5%
October		819		672		-17.9%
November	729		636		-12.8%
December	617		665		7.8%