Jan ( N = 335 )

Feb ( N = 319 )

Mar ( N = 341 )

Apr ( N = 322 )

May ( N = 339 )

Jun ( N = 330 )

Jul ( N = 341 )

Aug ( N = 338 )

Sep ( N = 285 )

Oct ( N = 340 )

Nov ( N = 324 )

Dec ( N = 296 )