Jan ( N = 228 )

Feb ( N = 208 )

Mar ( N = 231 )

Apr ( N = 224 )

May ( N = 228 )

Jun ( N = 210 )

Jul ( N = 232 )

Aug ( N = 199 )

Sep ( N = 193 )

Oct ( N = 231 )

Nov ( N = 212 )

Dec ( N = 130 )