Feb ( N = 61 )

Mar ( N = 189 )

Apr ( N = 69 )

May ( N = 169 )

Jun ( N = 414 )

Jul ( N = 730 )

Aug ( N = 1142 )

Sep ( N = 1112 )

Oct ( N = 1006 )

Nov ( N = 1057 )

Dec ( N = 1177 )