Feb ( N = 6 )

Mar ( N = 272 )

Apr ( N = 1044 )

May ( N = 1070 )

Jun ( N = 926 )

Jul ( N = 1077 )

Aug ( N = 1082 )

Sep ( N = 1047 )

Oct ( N = 1075 )

Nov ( N = 1042 )

Dec ( N = 1083 )