An interesting tidbit - looking at the page source, here is what Tesla is calling "early", "mid", and "late" as far as months go:
Code:
Early: [0, 1, 2, 3],
Mid: [4, 5, 6, 7],
Late: [8, 9, 10, 11, 12]
Not sure why they have 13 months (month 0), but that leaves it open to interpretation. If month 0 is January, then mid-2016 is May, June, July, August. That makes more sense than having 5 months bundled into the "late" category, and only three months bundled into the "early" category. Interesting regardless.