How many oak leaf clusters are worn if you have 7 aam?

The answer is one silver and one bronze oak leaf cluster worn on the same ribbon...

After you have been awarded a particular decoration or medal, the subsequent award of the same decoration or medal are indicated by the wear of a single bronze oak leaf cluster. With each additional award, another bronze oak leaf cluster is added, for up to a total of four oak leaf clusters which signifies that you have been awarded the decoration or medal five times. If you receive a sixth award, a silver oak leaf cluster replaces the four bronze oak leaf clusters. If you receive additional awards, more bronze oak leaf clusters are added until a total of four bronze oak leaf clusters are accumulated and another silver oak leaf cluster is added, repeating the process.