May ( N = 91 )

Jun ( N = 83 )

Jan ( N = 1 )

Feb ( N = 62 )

Mar ( N = 123 )

Apr ( N = 120 )

May ( N = 124 )

Jun ( N = 120 )

Jul ( N = 124 )

Aug ( N = 81 )

Jan ( N = None )

Feb ( N = None )

May ( N = 92 )

Jun ( N = 120 )

Jul ( N = 124 )

Aug ( N = 124 )

Sep ( N = 120 )

Oct ( N = 124 )

Nov ( N = 120 )

Dec ( N = 124 )

Aug ( N = None )

Sep ( N = None )

Oct ( N = None )

Nov ( N = None )

Dec ( N = None )