hi wxyz!
know what? i can say that the listening and reading part really depends on your practice and your concentration during the actual exam. the writing would depend on the topic and how much you know about it to expound more and set examples and personal experiences. for speaking, depends on your confidence and the attitude of the interviewer. some of my friends had a not so good experience with their interviewers while others were happy and satisfied with the way the interviewers questioned them.
so my advise would be, practice the listening and reading as often as you can and develop your writing skills. build your confidence for speaking and never forget to take a deep breath, maintain eye contact and smile of course though your knees maybe shaking. ;D
my score? listening and reading - 8, writing - 7 and speaking - 7.5
good luck and stay focused.....