Jan ( N = 90 )

Feb ( N = 67 )

Mar ( N = 235 )

Apr ( N = 167 )

May ( N = 138 )

Jun ( N = 131 )

Jul ( N = 119 )

Aug ( N = 81 )

Sep ( N = 215 )

Oct ( N = 227 )

Nov ( N = 241 )

Dec ( N = 246 )