Jan ( N = 92 )

Feb ( N = 78 )

Mar ( N = 234 )

Apr ( N = 235 )

May ( N = 235 )

Jun ( N = 180 )

Jul ( N = 196 )

Aug ( N = 196 )

Sep ( N = 225 )

Oct ( N = 232 )

Nov ( N = 159 )

Dec ( N = 245 )