Do not make this hard on yourself. While they may be sublists, there is no requirement that you implement them as lists in your code, and in fact it is making it only harder for you to complete your objectives. Instead, try something like this:

public class pageController {

	public pageController() {
		// Just one way to load data.
		loadGoals();
	}

	public class goalRow {
		public goalRow(string Description, integer sipEquity, integer sipDebt, integer sipGold, integer sumEquity, integer sumDebt, integerSumGold) {
			this.Description = Description;
			this.sipEquity = sipEquity;
			this.sipDebt = sipDebt;
			this.sipGold = sipGold;
			this.sumEquity = sumEquity;
			this.sumDebt = sumDebt;
			this.sumGold = sumGold;
		}
		public string Description { get; set; }
		public Integer sipEquity { get; set; }
		public Integer sipDebt { get; set; }
		public Integer sipGold { get; set; }
		public Integer sumEquity { get; set; }
		public Integer sumDebt { get; set; }
		public Integer sumGold { get; set; }
		public Integer getsumTotal() {
			return sumEquity + sumDebt + sumGold;
		}
		public Integer getsipTotal() {
			return sipEquity + sipDebt + sipGold;
		}
	}
	
	public list<goalRow> goalList { get; set; }

	// actual method to load goals.
	public void loadGoals() {
		goalList = new list<goalRow>();
		goalRow goalTotal = new goalRow(null,0,0,0,0,0,0);
		// change object and field names to suit.
		for(GoalData__c goal:[select id,name,sipequity__c,sipdebt__c,sipgold__c,sumequity__c,sumdebt__c,sumgold__c from GoalData__c where ownerid = :userinfo.getuserid()]) {
			goalList.add(new goalRow(goal.name,goal.sipequity__c,goal.sipdebt__c,goal.sipgold__c,goal.sumequity__c,goal.sumdebt__c,goal.sumgold__c));
			goalTotal.sipequity += goal.sipequity__c;
			goalTotal.sipdebt += goal.sipdebt__c;
			goalTotal.sipgold += goal.sipgold__c;
			goalTotal.sumequity += goal.sumequity__c;
			goalTotal.sumdebt += goal.sumdebt__c;
			goalTotal.sumgold += goal.sumgold__c;
		}
		goalList.add(goalTotal); // place totals line last.
	}
}

<!-- just the table generation, for demonstration -->
<apex:repeat value="{!goalList}" var="goalItem">
	<tr>
		<td>{!goalItem.Description}</td>
		<td>{!goalItem.sipEquity}</td>
		<td>{!goalItem.sipDebt}</td>
		<td>{!goalItem.sipGold}</td>
		<td>{!goalItem.sipTotal}</td>
		<td>{!goalItem.sumEquity}</td>
		<td>{!goalItem.sumDebt}</td>
		<td>{!goalItem.sumGold}</td>
		<td>{!goalItem.sumTotal}</td>
	</tr>
</apex:repeat>

 Although, the idea I posted earlier this morning should also work; it would require far less code modification than the example here.

The point of these examples is that you need to render from left to right, top to bottom (like a Z shape), and not top to bottom, left to right (like an inverted N shape). You don't need to make it any more difficult on yourself, and using lists to represent your data does just that.