The proportion of households' interest payments to their monthly income hit a record high in the second quarter, data showed Wednesday, indicating that the financial burden from mounting debts is weighing heavily on many people. According to the data by Statistics Korea, a household with two or more family members paid a monthly average of 86,256 won (US$80.24) in interest on debts in the April-June period, up 11.4 percent from a year earlier.