Jan ( N = 47 )

Feb ( N = 29 )

Mar ( N = 1 )

Apr ( N = 17 )

May ( N = 47 )

Jun ( N = 59 )

Jul ( N = 60 )

Aug ( N = 61 )

Sep ( N = 59 )

Oct ( N = 62 )

Nov ( N = 36 )

Dec ( N = 45 )