Jan ( N = 138 )

Feb ( N = 133 )

Mar ( N = 151 )

Apr ( N = 139 )

May ( N = 86 )

Jun ( N = 117 )

Jul ( N = 185 )

Aug ( N = 324 )

Sep ( N = 507 )

Oct ( N = 335 )

Nov ( N = 292 )

Dec ( N = 267 )