Jan ( N = 242 )

Feb ( N = 222 )

Mar ( N = 225 )

Apr ( N = 118 )

May ( N = 95 )

Jun ( N = 166 )

Jul ( N = 196 )

Aug ( N = 215 )

Sep ( N = 52 )

May ( N = None )

Jun ( N = 61 )

Jul ( N = 173 )

Aug ( N = 215 )

Sep ( N = 230 )

Oct ( N = 234 )

Nov ( N = 224 )

Dec ( N = 246 )