Jan ( N = 143 )

Feb ( N = 133 )

Mar ( N = 155 )

Apr ( N = 275 )

May ( N = 331 )

Jun ( N = 331 )

Jul ( N = 345 )

Aug ( N = 341 )

Sep ( N = 332 )

Oct ( N = 347 )

Nov ( N = 310 )

Dec ( N = 209 )