Jan ( N = 88 )

Feb ( N = 92 )

Mar ( N = 244 )

Apr ( N = 175 )

May ( N = 238 )

Jun ( N = 198 )

Jul ( N = 217 )

Aug ( N = 198 )

Sep ( N = 223 )

Oct ( N = 232 )

Nov ( N = 239 )

Dec ( N = 247 )