Jan ( N = 988 )

Feb ( N = 972 )

Mar ( N = 1102 )

Apr ( N = 1095 )

May ( N = 1072 )

Jun ( N = 1085 )

Jul ( N = 1139 )

Aug ( N = 1140 )

Sep ( N = 1041 )

Oct ( N = 1134 )

Nov ( N = 1140 )

Dec ( N = 1152 )