Research on China’s Ecological Welfare Performance Evaluation and Improvement Path from the Perspective of High-Quality Development

Table 3

Comprehensive index of China’s pollutant emissions from 2006–2018.

Years	2006	2007	2008	2009	2010	2011	2012	2013	2014	2015	2016	2017	2018
Pollutant discharge index	0.103	0.093	0.091	0.095	0.085	0.084	0.079	0.073	0.069	0.065	0.062	0.053	0.048