Cross check the GCC with BLS data

Per discussion on HN, several people pointed out that the BLS data is available for use to cross check the calculator, at least in the US.

• https://news.ycombinator.com/item?id=13611926
• https://news.ycombinator.com/item?id=13610111

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• gather BLS data, compare with calculator
• see if and how changes can / need to be made