James F. Collins, Chief Executive Officer of the group, comments: "As previously shared, the group's overall revenues in 2015 is in line with 2013 and 2014." He adds: "We now are seeing the fruits of our efforts regarding reorganization of both the commercial and operational organizations. A positive book-to-bill ratio in 2015 means that our previous guidance of double digit growth in 2016 remains an achievable goal for the group."