Year	SO2	NOx	Dust
2004	100	100	100
2005	94.42268871	100.3825251	86.52076457
2006	91.50940182	98.58494678	77.73351426
2007	85.56791761	96.26896561	75.83415097
2008	60.24685196	79.86444756	54.68200576
2009	47.81827709	70.60940403	42.84189303
2010	42.53551037	67.2052091	40.81559369
2011	40.31399222	65.8656118	44.61327443
2012	36.08683261	66.21924311	34.24870087
2013	28.32119278	57.83125726	30.09688435
2014	25.94733489	52.82888736	26.46323167