Jan ( N = 154 )

Feb ( N = 137 )

Mar ( N = 67 )

Apr ( N = 50 )

May ( N = 61 )

Jun ( N = 220 )

Jul ( N = 279 )

Aug ( N = 279 )

Sep ( N = 263 )

Oct ( N = 279 )

Nov ( N = 269 )

Dec ( N = 278 )