One of the nine Inaugural Balls is designated specifically to honor and thank our troops and their families. Each of the other 8 balls will be organized by state. Every state will be represented at a ball to ensure that participants of the Inaugural celebrations can attend a ball with their state. The District of Columbia, Virgin Islands, American Samoa, Puerto Rico, Guam and the Diplomatic Corps will also be represented at an Inaugural ball. The Constitution Ball is for 18 of the 56 states/groups, while the Liberty Ball is solely for the state of Florida. The Constitution Ball obviously has more states/groups than the average number of states/groups per ball for these eight balls. By what percent does the actual number of states/groups represented at the Constitution Ball exceed the average number for each of the eight balls? Express your answer to the nearest whole number.