I know the faculty keeps averages for first year courses around 68%. What are the usual averages for 2nd to 4th year courses. I am particularly interested in ece courses.
Thanks

68% sounds a bit low to me... at least in engsci first year, no course average was below a B- (70%), and that was without a bell curve in many of them.

I'll go with what FourthYearEngsci said - dunno about exact averages in my program but it is very true that averages go up steadily in each year, bell curve or no bell curve. People do adapt and mature as their undergrad progresses and even if they did poorly in 1st/2nd year, they might suddenly shoot up by 4th year.