@Override
	public void evaluate() throws Throwable {
		if (checkRun(Grinder.grinder.getRunNumber())) {
			statement.evaluate();
		}
	}
Constructor.

@param statement	statement to be repeated
@param runRate	the percent of run
ngrinder-groovy/src/main/java/net/grinder/scriptengine/groovy/junit/RunRateStatement.java