Jan ( N = 90 )

Feb ( N = 97 )

Mar ( N = 229 )

Apr ( N = 168 )

May ( N = 232 )

Jun ( N = 205 )

Jul ( N = 219 )

Aug ( N = 204 )

Sep ( N = 222 )

Oct ( N = 232 )

Nov ( N = 234 )

Dec ( N = 243 )