Jan ( N = 126 )

Feb ( N = 520 )

Mar ( N = 728 )

Apr ( N = 1148 )

May ( N = 1196 )

Jun ( N = 1156 )

Jul ( N = 719 )

Aug ( N = 1209 )

Sep ( N = 1167 )

Oct ( N = 1194 )

Nov ( N = 1162 )

Dec ( N = 1207 )