Jan ( N = 1150 )

Feb ( N = 1067 )

Mar ( N = 1174 )

Apr ( N = 1131 )

May ( N = 1161 )

Jun ( N = 1130 )

Jul ( N = 1174 )

Aug ( N = 1175 )

Sep ( N = 1137 )

Oct ( N = 1159 )

Nov ( N = 1140 )

Dec ( N = 1178 )