Jan ( N = 31 )

Feb ( N = 75 )

Mar ( N = 92 )

Apr ( N = 90 )

May ( N = 92 )

Jun ( N = 89 )

Jul ( N = 93 )

Aug ( N = 93 )

Sep ( N = 89 )

Oct ( N = 93 )

Nov ( N = 88 )

Dec ( N = 28 )