I think it certainly has got easier, I found my A-Levels fairly straightforward, and not often stressful, I took Maths, English, French, Japanese and General Studies, but I found I still had a fair enough amount of free time. The main way in which the exams have become easier have been their setup - with questions in a similar format to classwork, and often students can be taught to some extent the best way to answer. The fact that the rate of high grades used to be much lower is proof alone. However, it may not necessarily be a case of easier content necessarily, but simply being easier to achieve high grades. I don't know whether in the past the exams were marked similarly, but uniform marks mean that one's raw percentage now tends to be less than the uniform mark which counts towards the 'percentage' of the A-level mark. For example, to get 80/100 in an exam, it doesn't actually mean getting 80%, rather a percentage which is equivalent to 80/100 (e.g. 68%), with this conversion based on how difficult the exam was, which in turn is measured by the average mark. When viewed like this, getting 80% overall (which is equivalent to an A) is not as difficult as it sounds - i.e. you do not have to get an average of 80% in every exam.