Jan ( N = 460 )

Feb ( N = 1074 )

Mar ( N = 1158 )

Apr ( N = 1123 )

May ( N = 1171 )

Jun ( N = 1135 )

Jul ( N = 1160 )

Aug ( N = 1160 )

Sep ( N = 1123 )

Oct ( N = 1168 )

Nov ( N = 1134 )

Dec ( N = 1174 )