Spills – sabotage: Volume in thousand tonnes (2010: 3.0; 2011: 1.6; 2012: 3.3; 2013: 2.2; 2014: 2.7; 2015: 2.3; 2016: 3.9; 2017: 1.4; 2018: 1.6; 2019: 2.0); Number of spills (2010: 112; 2011: 118; 2012: 138; 2013: 157; 2014: 139; 2015: 95; 2016: 49; 2017: 62; 2018: 109; 2019: 156) (line chart)