Jan ( N = 85 )

Feb ( N = 64 )

Mar ( N = 237 )

Apr ( N = 188 )

May ( N = 146 )

Jun ( N = 142 )

Jul ( N = 120 )

Aug ( N = 85 )

Sep ( N = 223 )

Oct ( N = 236 )

Nov ( N = 236 )

Dec ( N = 247 )