Jan ( N = 306 )

Feb ( N = 165 )

Mar ( N = 173 )

Apr ( N = 171 )

May ( N = 177 )

Jun ( N = 171 )

Jul ( N = 172 )

Aug ( N = 173 )

Sep ( N = 159 )

Oct ( N = 157 )

Nov ( N = 151 )

Dec ( N = 167 )