Jan ( N = 35 )

Mar ( N = 561 )

Apr ( N = 1726 )

May ( N = 893 )

Jun ( N = 1390 )

Jul ( N = 1782 )

Aug ( N = 1457 )

Sep ( N = 1450 )

Oct ( N = 1623 )

Nov ( N = 1681 )

Dec ( N = 1009 )