Jan ( N = 430 )

Feb ( N = 388 )

Mar ( N = 432 )

Apr ( N = 417 )

May ( N = 428 )

Jun ( N = 416 )

Jul ( N = 430 )

Aug ( N = 431 )

Sep ( N = 56 )

May ( N = 148 )

Jun ( N = 418 )

Jul ( N = 430 )

Aug ( N = 429 )

Sep ( N = 408 )

Oct ( N = 430 )

Nov ( N = 416 )

Dec ( N = 429 )

Jul ( N = None )

Oct ( N = None )