Jan ( N = 96 )

Feb ( N = 75 )

Mar ( N = 237 )

Apr ( N = 236 )

May ( N = 239 )

Jun ( N = 182 )

Jul ( N = 194 )

Aug ( N = 197 )

Sep ( N = 225 )

Oct ( N = 232 )

Nov ( N = 159 )

Dec ( N = 247 )