You all need to get a grip. Not all of you can get 99+ because first of all it's statiscally impossible... the scores need to be distributed evenly. Secondly, no one gets that high unless they do the crazy subjects like Latin and Ext 2 English Extension history... fricken Classical Greek Continuers. It's insane and pretty stupid to aim for perfection because chances are you WILL be disappointed.
On a lighter note, a suggest you aim for something a little more achievable like 90 or even 85+... that way if you get higher you'll be over the moon because you achieved better, rather then going into some depressive state because you got 97 instead of 99.7