Jan ( N = 85 )

Feb ( N = 90 )

Mar ( N = 245 )

Apr ( N = 176 )

May ( N = 237 )

Jun ( N = 193 )

Jul ( N = 216 )

Aug ( N = 198 )

Sep ( N = 222 )

Oct ( N = 231 )

Nov ( N = 240 )

Dec ( N = 246 )