Create a two-year chart that shows the index price for Florida Gas Zone 1 against a baseline of the index price for Henry Hub as they appear in the Platts publication.

In order to solve this problem, you must create a two-year chart of daily spread or difference between Florida Gas Zone 1 and Henry Hub (the index of Florida Gas Zone 1 minus the index of Henry Hub). By anchoring Henry Hub as the baseline and displaying Florida Gas Zone 1 as the default line chart type, you can see whether Florida Gas Zone 1 is trading at a premium (more than) or discount (less than) to the baseline.

After the chart is completed, it will appear as follows: