Feb ( N = 255 )

Mar ( N = 149 )

Apr ( N = 37 )

May ( N = 370 )

Jun ( N = 70 )

Jul ( N = 1320 )

Aug ( N = 1609 )

Sep ( N = 1555 )

Oct ( N = 1588 )

Nov ( N = 1557 )

Dec ( N = 1590 )