Real gross domestic product
Real gross domestic product (real GDP for short) is a macroeconomic measure of the value of economic output adjusted for price changes (i.e. inflation or deflation). This adjustment transforms the money-value measure, nominal GDP, into an index for quantity of total output. Although GDP is total output, it is primarily useful because it closely approximates the total spending: the sum of consumer spending, investment made by industry, excess of exports over imports, and government spending. Due to inflation, GDP increases and does not actually reflect the true growth in an economy. That is why the GDP must be divided by the inflation rate (raised to the power of units of time in which the rate is measured) to get the growth of the real GDP. Different organizations use different types of 'Real GDP' measures, for example the United Nations UNCTAD uses 2005 Constant prices and exchange rates while the FRED uses 2009 constant prices and exchange rates, and recently the World Bank switched from 2005 to 2010 constant prices and exchange rates.
External debt of the Philippines
The Debt-to-GDP ratio is the proportion of a country's federal debt in relation to its total output or GDP. According to the Bangko Sentral ng Pilipinas (BSP), the ratio of what the Philippines owes from foreign creditors (external debt) to what it has been producing (GDP) has gone through a significant growth from 61.6% in 1999 to 68.2% in 2001. The ratio fluctuated until 2004 when it started a steady decline up to 2008. It rose again to 38.4% in 2009, but eventually fell down to 36.9% in 2010. Up until 2015, the trend was declining, with a 27.3% ratio at the end of 2014. Figures have generally been fluctuating (in terms of public and private external debt). Governments basically aim for low debt-to-GDP ratios because such is an indicator that the economy is producing high enough output to pay off its borrowings.