There is no pass mark. You just get a raw score out of 30. Nobody yet knows what the average score will be this year. Nor do they know what will be considered a high score. You can't analogise easily from last year's scores, which were out of 24, not out of 30.
Also, don't forget that the essay (which is not marked but only read) could make all the difference. A bad essay could counteract a good score, or vice versa.