Apr ( N = 15 )

May ( N = 317 )

Jun ( N = 349 )

Jul ( N = 307 )

Aug ( N = 368 )

Sep ( N = 304 )

Oct ( N = 282 )

May ( N = 139 )

Jun ( N = 397 )

Jul ( N = 354 )

Aug ( N = 456 )

Sep ( N = 347 )

Oct ( N = 358 )

Nov ( N = 235 )

Dec ( N = 137 )