Could you achieve multiple Exemplary Performance Points by exceeding a credit by multiple thresholds? Or can you achieve only one EP point per existing credit?

Example: LEED EBOM 2008 - EAc4 provides points for onsite renewable energy at the following thresholds:
3% - 1 point
6% - 2 points
9% - 3 points
12% - 4 points

If a project were to achieve 19% onsite, would it be eligible for 1 or 2 EP points associated with EAc4?