Jan ( N = 1073 )

Feb ( N = 999 )

Mar ( N = 1147 )

Apr ( N = 1108 )

May ( N = 1147 )

Jun ( N = 1110 )

Jul ( N = 1147 )

Aug ( N = 1145 )

Sep ( N = 1068 )

Oct ( N = 1147 )

Nov ( N = 1110 )

Dec ( N = 1146 )