Jan ( N = 261 )

Feb ( N = 264 )

Mar ( N = 354 )

Apr ( N = 391 )

May ( N = 457 )

Jun ( N = 422 )

Jul ( N = 459 )

Aug ( N = 413 )

Sep ( N = 365 )

Oct ( N = 324 )

Nov ( N = 259 )

Dec ( N = 264 )