Jan ( N = 154 )

Feb ( N = 140 )

Mar ( N = 155 )

Apr ( N = 150 )

May ( N = 155 )

Jun ( N = 150 )

Jul ( N = 154 )

Aug ( N = 155 )

Sep ( N = 76 )

Oct ( N = 109 )

Nov ( N = 175 )

Dec ( N = 186 )