Jan ( N = 241 )

Feb ( N = 221 )

Mar ( N = 217 )

Apr ( N = 114 )

May ( N = 60 )

Jun ( N = 155 )

Jul ( N = 196 )

Aug ( N = 215 )

Sep ( N = 55 )

May ( N = None )

Jun ( N = 58 )

Jul ( N = 152 )

Aug ( N = 214 )

Sep ( N = 227 )

Oct ( N = 234 )

Nov ( N = 221 )

Dec ( N = 240 )