Jan ( N = 358 )

Feb ( N = 128 )

Mar ( N = 1213 )

Apr ( N = 1172 )

May ( N = 1208 )

Jun ( N = 1138 )

Jul ( N = 1152 )

Aug ( N = 1032 )

Sep ( N = 968 )

Oct ( N = 1158 )

Nov ( N = 1177 )

Dec ( N = 980 )