Jan ( N = 236 )

Feb ( N = 212 )

Mar ( N = 232 )

Apr ( N = 235 )

May ( N = 262 )

Jun ( N = 269 )

Jul ( N = 248 )

Aug ( N = 262 )

Sep ( N = 257 )

Oct ( N = 220 )

Nov ( N = 235 )

Dec ( N = 230 )