Jan ( N = 86 )

Feb ( N = 95 )

Mar ( N = 233 )

Apr ( N = 198 )

May ( N = 234 )

Jun ( N = 156 )

Jul ( N = 214 )

Aug ( N = 232 )

Sep ( N = 209 )

Oct ( N = 221 )

Nov ( N = 240 )

Dec ( N = 186 )