Jan ( N = 631 )

Feb ( N = 1063 )

Mar ( N = 1029 )

Apr ( N = 1140 )

May ( N = 1178 )

Jun ( N = 1133 )

Jul ( N = 1173 )

Aug ( N = 1178 )

Sep ( N = 1139 )

Oct ( N = 1053 )

Nov ( N = 1138 )

Dec ( N = 1172 )