How many oak leaf clusters are worn if you have 6 AAM?

One would wear a single Silver Oak Leaf Cluster. The Silver Oak Leaf Cluster signifies that the Army Achievement Medal has been awarded 5 subsequent times and the Ribbon itself signifies the first one awarded. For every AAM awarded after this, one would wear a Bronze Oak Leaf Cluster (signifying one awarded AAM) until one reaches 11 total awards. At this point, one would wear a second Silver Oak Leaf Cluster.