Jan ( N = 268 )

Feb ( N = 325 )

Mar ( N = 367 )

Apr ( N = 420 )

May ( N = 430 )

Jun ( N = 387 )

Jul ( N = 433 )

Aug ( N = 407 )

Sep ( N = 417 )

Oct ( N = 434 )

Nov ( N = 395 )

Dec ( N = 432 )