Jan ( N = 381 )

Feb ( N = 727 )

Mar ( N = 758 )

Apr ( N = 517 )

May ( N = 805 )

Jun ( N = 923 )

Jul ( N = 845 )

Aug ( N = 776 )

Sep ( N = 230 )

Oct ( N = 772 )

Jul ( N = 494 )

Aug ( N = 633 )

Sep ( N = 656 )

Oct ( N = 668 )

Nov ( N = 784 )

Dec ( N = 337 )

Apr ( N = None )

May ( N = None )

Jun ( N = None )

Jul ( N = None )