Jan ( N = 104 )

Feb ( N = 112 )

Mar ( N = 196 )

Apr ( N = 265 )

May ( N = 271 )

Jun ( N = 265 )

Jul ( N = 268 )

Aug ( N = 275 )

Sep ( N = 263 )

Oct ( N = 278 )

Nov ( N = 254 )

Dec ( N = 276 )