Jan ( N = 51 )

Feb ( N = 56 )

Mar ( N = 56 )

Apr ( N = 60 )

May ( N = 62 )

Jun ( N = 61 )

Jul ( N = 72 )

Aug ( N = 69 )

Sep ( N = 67 )

Oct ( N = 67 )

Nov ( N = 63 )

Dec ( N = 62 )