Fan Charts Central Economic Plan 2016
The solid line represents data realisations (2011-2015) and the CEP 2016 point forecasts for 2016 and 2017. Around the central path the figures present a fan of confidence intervals:
- 30% confidence interval from the 35th to 65th percentile, dark blue area
- 60% confidence interval from the 20th to 80th percentile, dark blue + blue area
- 90% confidence interval from the 5th to 95th percentile, dark blue + blue + light blue area
The probability is thus 30% that the outcome will fall in the dark blue area and the probability is 10% that the outcome will fall outside the fan. In other words, the fan is a graphical representation of the likelihood of the various outcomes. The solid line represents the most likely outcome and outcomes are more likely when they are closer to the solid line.