Jan ( N = 465 )

Feb ( N = 435 )

Mar ( N = 465 )

Apr ( N = 450 )

May ( N = 461 )

Jun ( N = 449 )

Jul ( N = 464 )

Aug ( N = 460 )

Sep ( N = 450 )

Oct ( N = 464 )

Nov ( N = 398 )

Dec ( N = 461 )