Jan ( N = 84 )

Feb ( N = 95 )

Mar ( N = 246 )

Apr ( N = 183 )

May ( N = 241 )

Jun ( N = 197 )

Jul ( N = 218 )

Aug ( N = 198 )

Sep ( N = 225 )

Oct ( N = 231 )

Nov ( N = 240 )

Dec ( N = 245 )