Value range of amchart y axis

I'm using amchart and it's real time, I'm displaying 5 values on y axis and they are (0.0570, 0.0572, 0.0574, 0.0576, 0.0578) btw I'm getting the values from the database. But I want to change that, I'm only going to display 3 values and I want them to be (0.0560, 0.0570, 0.0580) How can I control the range?

Thank you!