Jan ( N = 81 )

Feb ( N = 55 )

Mar ( N = 237 )

Apr ( N = 184 )

May ( N = 145 )

Jun ( N = 134 )

Jul ( N = 122 )

Aug ( N = 88 )

Sep ( N = 218 )

Oct ( N = 229 )

Nov ( N = 243 )

Dec ( N = 247 )