These reductions are guided by goals to reduce our intensity in each of these respective categories 25 percent by 2020 against a 2010 baseline. The following recaps our progress through 2015.
During 2015, we were gratified to surpass our waste-to-landfill intensity goal five years ahead of its 2020 terminal target date. As discussed in the Waste section, the pace of our progress in this area reflects the success of our Zero Landfill (ZLF) program introduced several years ago, as well as the laser focus on resource efficiency found throughout our operations. This focus is also reflected in work against our other 2020 goals, where we continue to be pleased with our pace of progress.
That progress is especially satisfying when viewed against the very significant level of business growth that we have experienced in the past five years. Since 2010, revenue has increased more than 50 percent as we have grown legacy businesses and made significant acquisitions. This growth has dramatically increased our manufacturing presence in Europe and Asia, as well as in North America. The result is that Mohawk Industries today is a very different organization from when we began formalizing our sustainability practice and setting goals in 2009.
As a result of this growth, we have a much larger international footprint with significantly more currency exchange impacts today than in 2009. At that time, we set intensity-based goals using net sales for normalization purposes. Since then, currency impacts have had both positive and negative impacts on revenue. When we do not account for these currency impacts, then intensity results are skewed and do not accurately represent our progress to date in international businesses. Accordingly, we modified and restated our intensity measurements in 2015 to incorporate net sales on a constant exchange rate basis in order to improve the accuracy of the metric and to provide a clearer picture of our progress.
With one goal now achieved and another on the near-term horizon, we expect to use this new methodology over the coming year to look beyond 2020 and begin mapping toward 2030. It’s the best way we know to ensure that our drive toward truly meaningful progress continues and we deliver significant impact.