[1] the one year gross paid amount for total environmental claims is $ 58 , resulting in a one year gross survival ratio of 6.4 . [2] the three year average gross paid amount for total environmental claims is $ 58 , resulting in a three year gross survival ratio of 6.4 . during the second quarters of 2011 , 2010 and 2009 , the company completed its annual ground-up asbestos reserve evaluations