Meyers-Briggs Check In

I just took the Meyers-Briggs test at this site:

INFP

• You have strong preference of Introversion over Extraversion (78%)
• You have slight preference of Intuition over Sensing (12%)
• You have moderate preference of Feeling over Thinking (50%)
• You have moderate preference of Perceiving over Judging (56%)

The letters are the same, but the proportions are very different from other times I took a test for this:

In August 2011 these were my results via this site -

Introverted (I) 75%	Extroverted (E) 25%
Intuitive (N) 77%	Sensing (S) 23%
Feeling (F) 95%	Thinking (T) 5%
Perceiving (P) 91%	Judging (J) 9%

Maybe I've become more balanced or maybe different tests are skewed different ways or maybe I'm in a different mood and context.