Jan ( N = 725 )

Feb ( N = 1015 )

Mar ( N = 1142 )

Apr ( N = 1103 )

May ( N = 1146 )

Jun ( N = 1084 )

Jul ( N = 1135 )

Aug ( N = 1139 )

Sep ( N = 1105 )

Oct ( N = 1130 )

Nov ( N = 1099 )

Dec ( N = 1136 )