Jan ( N = 1177 )

Feb ( N = 1100 )

Mar ( N = 1176 )

Apr ( N = 1140 )

May ( N = 1164 )

Jun ( N = 1136 )

Jul ( N = 1164 )

Aug ( N = 1085 )

Sep ( N = 1050 )

Oct ( N = 1081 )

Nov ( N = 1050 )

Dec ( N = 1087 )