Jan ( N = 279 )

Feb ( N = 251 )

Mar ( N = 277 )

Apr ( N = 269 )

May ( N = 279 )

Jun ( N = 257 )

Jul ( N = 176 )

Aug ( N = 252 )

Sep ( N = 236 )

Oct ( N = 263 )

Nov ( N = 243 )

Dec ( N = 256 )