Jan ( N = 88 )

Feb ( N = 60 )

Mar ( N = 236 )

Apr ( N = 190 )

May ( N = 146 )

Jun ( N = 143 )

Jul ( N = 120 )

Aug ( N = 83 )

Sep ( N = 222 )

Oct ( N = 235 )

Nov ( N = 236 )

Dec ( N = 247 )