Jan ( N = 90 )

Feb ( N = 63 )

Mar ( N = 234 )

Apr ( N = 216 )

May ( N = 141 )

Jun ( N = 148 )

Jul ( N = 127 )

Aug ( N = 81 )

Sep ( N = 225 )

Oct ( N = 229 )

Nov ( N = 234 )

Dec ( N = 247 )