The first set represents dividends actually paid until March 31, 2014. All of those monies were earned by December 31, 2013 and then the latest was paid forward per payment pattern for 2014Q1.
The second set represents a hypothetical set of dividends without the net worth sweep. Just 10% dividends on an unredeemable $189.4 billion liquidation preference.
Actual Dividends Paid at 10% and Net Worth Sweep Beginning 1/01/2013 (in billions)
Actual Dividends Paid at 10% until 12/31/2012 and Hypothetical Dividends at 10% without change in Third Amendment so that the $189.4 billion liquidation preference remain unredeemed. (in billions)