Jan ( N = 253 )

Feb ( N = 230 )

Mar ( N = 248 )

Apr ( N = 240 )

May ( N = 248 )

Jun ( N = 240 )

Jul ( N = 240 )

Aug ( N = 247 )

Sep ( N = 240 )

Oct ( N = 238 )

Nov ( N = 239 )

Dec ( N = 273 )