Interest income was $0.5 million in the three months ended March 31, 2013 compared to $0.4 million in the three months ended March 31, 2012.
Other finance costs, net
Other finance costs, net, increased by $1.2 million, to $5.1 million in the three months ended March 31, 2013, from $3.9 million in the three months ended March 31, 2012. This increase was due to the $0.7 million increase in amortizing finance fees (which were deferred and are amortized over the term of the respective credit facilities), as well as increased accrued finance fees of $0.5 million (which accrete in our Statement of Income over the term of the respective facilities) in the three months ended March 31, 2013 compared to the three months ended March 31, 2012.
Other income/(expenses), net
Other income/(expenses), net, was negligible in the three months ended March 31, 2013 compared to an expense of $0.2 million in the three months ended March 31, 2012.
Unrealized gain/(loss) on derivatives
Unrealized gain/(loss) on interest rate swap hedges was a gain of $4.4 million in the three months ended March 31, 2013 compared to a gain of $2.9 million in the three months ended March 31, 2012. The unrealized gains were attributable to mark to market valuation of our swaps and hedge accounting ineffectiveness. Furthermore, we reclassified unrealized losses from Accumulated Other Comprehensive Loss to our earnings due to the discontinuation of hedge accounting since July 1, 2012.
Realized (loss)/gain on derivatives
Realized loss on interest rate swap hedges, increased by $1.2 million, to $36.6 million in the three months ended March 31, 2013, from $35.4 million in the three months ended March 31, 2012. This increase is mainly attributable to $4.8 million of realized losses that had been deferred during the three months ended March 31, 2012 (as discussed below) and were not deferred in the three months ended March 31, 2013, partially offset by the lower average notional amount of swaps during the three months ended March 31, 2013 compared to the three months ended March 31, 2012, which resulted in lower realized losses on derivatives of $3.6 million during the three months ended March 31, 2013.
With all our newbuildings having been delivered, no realized losses on cash flow hedges were deferred during the three months ended March 31, 2013. During the three months ended March 31, 2012, realized losses on cash flow hedges of $4.8 million were deferred in "Accumulated Other Comprehensive Loss," rather than being recognized as expenses, and are being reclassified into earnings over the depreciable lives of these vessels that were under construction and financed by loans with interest rates that were hedged by our interest rate swap contracts. The table below provides an analysis of the items discussed above, and which were recorded in the three months ended March 31, 2013 and 2012:
Three months Three months ended ended March 31, March 31, ------------ ------------ 2013 2012 ------------ ------------ (in millions)Total realized losses of swaps $ (36.6) $ (40.2)Realized losses of swaps deferred in OCL -- 4.8 ------------ ------------ Realized losses of swaps expensed in P&L (36.6) (35.4)Realized losses attributable to overhedging -- 6.9 ------------ ------------ Adjusted realized losses attributable to hedged debt $ (36.6) $ (28.5) ============ ============



