Jan ( N = 81 )

Feb ( N = 88 )

Mar ( N = 236 )

Apr ( N = 174 )

May ( N = 238 )

Jun ( N = 197 )

Jul ( N = 217 )

Aug ( N = 200 )

Sep ( N = 228 )

Oct ( N = 232 )

Nov ( N = 240 )

Dec ( N = 246 )