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100 <br /> 4) 90 2010-2012 <br /> 80 2013-2014 I m p rovi n g <br /> = 70 201572016 <br /> O <br /> 60 <br /> 50 <br /> O 40 <br /> *a iiloo� <br /> 30 <br /> $- �; Declining <br /> W 20 <br /> tis <br /> 10 ° <br /> � 0 <br /> Q 0 20 40 60 <br /> 80 <br /> Average 2001 -2009 Eutrophication Index <br /> Figure 17. Eutrophication Index for each Popponesset Bay site averaged 2010.12, 2013-14 and <br /> 2015-16 (Y axis) compared to the longer term average (2001-2009) for the same sites (X <br /> axis). Freshwater sites are not included. The 1:1 line represents "No Change", points above <br /> the line indicate improved conditions and points below the line indicate increased <br /> impairment. <br /> 40 <br />