Note: Min Gap or Minimum Gap is the country with the lowest average output gap. The Median is the observation in the middle at each point in time, which gives us a column series we term Fictitious. The Max Average or Maximum Average is the country with the highest average growth rate over the full sample period. Median Average is obtained by computing the average growth rate for each country to select the country in the Middle as reference. The Max Median is obtained by computing the median growth rate for each country and select the country with the maximum value as reference. Once the references are selected, we apply the measures of synchronicity to the output gap data.