Jan ( N = 86 )

Feb ( N = 57 )

Mar ( N = 238 )

Apr ( N = 182 )

May ( N = 145 )

Jun ( N = 134 )

Jul ( N = 123 )

Aug ( N = 90 )

Sep ( N = 222 )

Oct ( N = 229 )

Nov ( N = 243 )

Dec ( N = 247 )