As of December 31, 2011 BBP has logged 1,007 Zero Accident Days (NLTA), the equivalent of 6,750,252 manhours.

As of 31 December, 2012, Patina has logged 1.368 Zero Accident Days (NLTA), the equivalent of 603,311 manhours.

As of December 31, 2012 BBP has logged 1,369 Zero Accident Days (NLTA), the equivalent of 7,723,640 manhours.

As of December 31, 2012, Patina has logged 1.736 Zero Accident Days (NLTA), the equivalent of 922,732 manhours.