Jan ( N = 1085 )

Feb ( N = 977 )

Mar ( N = 1085 )

Apr ( N = 1026 )

May ( N = 1085 )

Jun ( N = 1049 )

Jul ( N = 1084 )

Aug ( N = 491 )

May ( N = None )

Jun ( N = None )

Jul ( N = 272 )

Aug ( N = 525 )

Dec ( N = 875 )