Jan ( N = 87 )

Feb ( N = 61 )

Mar ( N = 236 )

Apr ( N = 201 )

May ( N = 127 )

Jun ( N = 144 )

Jul ( N = 125 )

Aug ( N = 81 )

Sep ( N = 227 )

Oct ( N = 230 )

Nov ( N = 234 )

Dec ( N = 247 )