Jan ( N = 554 )

Feb ( N = 369 )

Mar ( N = 558 )

Apr ( N = 539 )

May ( N = 558 )

Jun ( N = 540 )

Jul ( N = 288 )

Aug ( N = 380 )

Sep ( N = 272 )

Jan ( N = 558 )

Feb ( N = 523 )

Mar ( N = 557 )

Apr ( N = 536 )

May ( N = 558 )

Jun ( N = 540 )

Jul ( N = 557 )

Aug ( N = 545 )

Sep ( N = 531 )

Oct ( N = 556 )

Nov ( N = 540 )

Dec ( N = 558 )

Feb ( N = None )

Mar ( N = 437 )

Apr ( N = 530 )

May ( N = 535 )

Jun ( N = 540 )

Jul ( N = 544 )

Aug ( N = 558 )

Sep ( N = 539 )

Oct ( N = 558 )

Nov ( N = 528 )

Dec ( N = 559 )