Just counting Jan-Feb, it happened in 03, 04, 05, 07, 08, 09, 11, 13, 14, and 15. Only 3 out past 12 years did no go below 0. It is more like a norm.
Just counting Jan-Feb, it happened in 03, 04, 05, 07, 08, 09, 11, 13, 14, and 15. Only 3 out past 12 years did no go below 0. It is more like a norm.