Jan ( N = 1012 )

Feb ( N = 668 )

Mar ( N = 1412 )

Apr ( N = 1440 )

May ( N = 1489 )

Jun ( N = 1427 )

Aug ( N = 160 )

Sep ( N = 1421 )

Oct ( N = 1424 )

Nov ( N = 1438 )

Dec ( N = 1161 )