Of course I do!
There are 144 players that have ever recorded a 100+ season in SC.
80 of these started their careers in or after 2005. We can only really look at those 80 players.
Here is a break up of how many seasons they played to hit their highest season average:
1 season - 1 player - 1.25% of the 80 players (Barlow)
2 seasons - 2 players - 2.50% (Macrae & Wines)
3 seasons - 7 players - 8.75%
4 seasons - 12 players - 15.00%
5 seasons - 14 players - 17.50%
6 seasons - 17 players - 21.25%
7 seasons - 12 players - 15.00%
8 seasons - 9 players - 11.25%
9 seasons - 5 players - 6.25%
10 seasons - 0 players - 0.00%
11 seasons - 1 player - 1.25% (Mundy)
So the popular numbers are 4 to 7 years, representing 68.75% of the 80 players.
I will temper this break up by saying some of them are a bit skewed.
For example, look at J Redden's averages: 65.5, 76,1, 102.9, 102.8, 98.0, 103.1, 95.5.
His peak is at year 6, and he appears at year 6 in the break up above, but it is only 0.2 above his year 3 average. I am guessing you are looking more for when players get near their peak, as an indicator as to who might be ripe for the picking. In a break up like that, he'd appear at year 3.
If you give me a variance to work with, I will rework the the table above to give a more useful outlook. I would imagine the variance to work with would be something like 4%, or even as high as 6.25%.