Jan ( N = 159 )

Feb ( N = 175 )

Mar ( N = 57 )

Apr ( N = 107 )

May ( N = 277 )

Jun ( N = 261 )

Jul ( N = 307 )

Aug ( N = 312 )

Sep ( N = 264 )

Oct ( N = 224 )

Nov ( N = 319 )

Dec ( N = 341 )