Jan ( N = 364 )

Feb ( N = 298 )

Mar ( N = 424 )

Apr ( N = 339 )

May ( N = 490 )

Jun ( N = 478 )

Jul ( N = 443 )

Aug ( N = 432 )

Sep ( N = 408 )

Oct ( N = 393 )

Nov ( N = 324 )

Dec ( N = 290 )