Jan ( N = 195 )

Feb ( N = 200 )

Mar ( N = 253 )

Apr ( N = 227 )

May ( N = 251 )

Jun ( N = 257 )

Jul ( N = 269 )

Aug ( N = 253 )

Sep ( N = 249 )

Oct ( N = 224 )

Nov ( N = 230 )

Dec ( N = 230 )