Jan ( N = 33 )

Feb ( N = 225 )

Mar ( N = 318 )

Apr ( N = 295 )

May ( N = 257 )

Jun ( N = 114 )

Jul ( N = 245 )

Aug ( N = 260 )

Sep ( N = 211 )

Oct ( N = 268 )

Nov ( N = 321 )

Dec ( N = 350 )