But those that did make big improvements in HDI value typically increased their trade to output ratio or established a global network of trade links of substantial bilateral value. In a sample of 95 developing countries and transitional economies, the average increase in trade to output ratio of countries considered to be rapid improvers on the HDI between 1990 and 2012 was about 13 percentage points higher than that of more modest improvers. Table 3.2 reconfirms this for a selected group of high human development-achieving countries discussed in this chapter, which have vigorously tapped opportunities presented by globalization by expanding their share of exports in world markets between 1990 and 2010.