Jan ( N = 87 )

Feb ( N = 61 )

Mar ( N = 235 )

Apr ( N = 187 )

May ( N = 147 )

Jun ( N = 142 )

Jul ( N = 121 )

Aug ( N = 82 )

Sep ( N = 219 )

Oct ( N = 236 )

Nov ( N = 232 )

Dec ( N = 247 )