Type of treatment	period	Total
Recycling	2022	42.92
Recycling	2021	43.72
Recycling	2020	40.39
Recycling	2019	37.96
Recycling	2018	34.79
Recycling	2017	36.11
Recycling	2016	33.86
Recycling	2015	29.79
Spill	2022	46.82
Spill	2021	45.67
Spill	2020	49.49
Spill	2019	51.05
Spill	2018	53.61
Spill	2017	51.16
Spill	2016	54.12
Spill	2015	57.76
Incineration	2022	10.26
Incineration	2021	10.60
Incineration	2020	10.12
Incineration	2019	10.99
Incineration	2018	11.60
Incineration	2017	12.73
Incineration	2016	12.02
Incineration	2015	12.45