Jan ( N = 87 )

Feb ( N = 87 )

Mar ( N = 234 )

Apr ( N = 172 )

May ( N = 239 )

Jun ( N = 198 )

Jul ( N = 216 )

Aug ( N = 204 )

Sep ( N = 229 )

Oct ( N = 230 )

Nov ( N = 239 )

Dec ( N = 245 )