The latest CPI release provided some much needed relief on the inflation front. What caught my eye was some of the discussion regarding the seasonal adjustment. This inspired me to wonder what seasonal adjustment was doing.From Reuters, by Emily Kaiser:WASHINGTON (Reuters) - High gasoline prices got you down? Come to the land of seasonal adjustment, where the sun is always shining and gas prices fell 2 percent last month.What? You paid more? Well, in the real world, gasoline prices did...