Return on Investment

Recently a Kellogg Research Institute report said 30% of projects fail. The failure was indicated by mistakes and poor decisions. I'm wondering how many new construction projects fail. Where are the statistics that indicate what specifics are related to new construction? Which part of the projects higher stats. In the same report IT energy usage is as high as the airline industry usage while power companies are adovcating protecting power grids where does put the fact that 74% of projects are not tracked? That's suicide for construction.