Jan ( N = 49 )

Feb ( N = 1060 )

Mar ( N = 1174 )

Apr ( N = 1140 )

May ( N = 1176 )

Jun ( N = 1139 )

Jul ( N = 1173 )

Aug ( N = 1173 )

Sep ( N = 1140 )

Oct ( N = 1178 )

Nov ( N = 1140 )

Dec ( N = 1177 )