Jan ( N = 288 )

Feb ( N = 301 )

Mar ( N = 363 )

Apr ( N = 398 )

May ( N = 426 )

Jun ( N = 428 )

Jul ( N = 479 )

Aug ( N = 431 )

Sep ( N = 374 )

Oct ( N = 332 )

Nov ( N = 277 )

Dec ( N = 251 )