Trading Economics members can view, download and compare data from nearly 200 countries, including more than 20 million economic indicators, exchange rates, government bond yields, stock indexes and commodity prices.
The Trading Economics Application Programming Interface (API) provides direct access to our data. It allows API clients to download millions of rows of historical data, to query our real-time economic calendar, subscribe to updates and receive quotes for currencies, commodities, stocks and bonds.
The 25th percentile score is the score below which 25 percent of students scored. 1997 scores were calculated on a scale with a mean of 250 points and a standard deviation of 50 points. 4th grade students were only assessed in 1997. Data reflects country performance in the stated year according to LLECE reports. Consult the LLECE website for more detailed information: http://www.llece.org/