6. Refer to Note 4 on page 1979 ofthe Ill-K included in the annual report. What are the cost basis, net unrealized gain, and fair value at Dec 31, 2018 and Dec 31, 2017 for the Investments in Equity Securities? _ Cost Basis Net Unrealized Gains Fair Value 2018 2017 What was the change in Net Unrealized Gains from 2017 to 2018'? How does this relate to Buffett's prediction