Jan ( N = 263 )

Feb ( N = 435 )

Mar ( N = 476 )

Apr ( N = 459 )

May ( N = 493 )

Jun ( N = 293 )

Jul ( N = 306 )

Aug ( N = 430 )

Sep ( N = 389 )

Oct ( N = 347 )

Nov ( N = 395 )

Dec ( N = 465 )