How many planets do you use?

Here's another interesting quiz: Ecological footprint quiz

According to this quiz, it takes 3.8 hectares to support my lifestyle. It also says "If everyone lived like you, we would need 2.1 planets".
Here are my results:

CATEGORY	GLOBAL HECTARES
FOOD		1.2
MOBILITY		0.2
SHELTER		1.1
GOODS/SERVICES		1.3
TOTAL FOOTPRINT		3.8

It's interesting, but the questions are not as detailed as the One Tonne Challenge, so I wonder how accurate it is. It does bring the question of what we choose to eat into the picture though.