Jan ( N = 89 )

Feb ( N = 63 )

Mar ( N = 235 )

Apr ( N = 200 )

May ( N = 142 )

Jun ( N = 148 )

Jul ( N = 127 )

Aug ( N = 82 )

Sep ( N = 228 )

Oct ( N = 231 )

Nov ( N = 235 )

Dec ( N = 247 )