Jan ( N = 84 )

Feb ( N = 90 )

Mar ( N = 239 )

Apr ( N = 169 )

May ( N = 233 )

Jun ( N = 199 )

Jul ( N = 225 )

Aug ( N = 207 )

Sep ( N = 228 )

Oct ( N = 229 )

Nov ( N = 235 )

Dec ( N = 247 )