Jan ( N = 420 )

Feb ( N = 397 )

Mar ( N = 383 )

Apr ( N = 419 )

May ( N = 426 )

Jun ( N = 412 )

Jul ( N = 426 )

Aug ( N = 366 )

Sep ( N = 418 )

Oct ( N = 365 )

Nov ( N = 209 )

Dec ( N = 159 )