Raleigh, NC-Based Martin Marietta 4Q 2017 Net Income Was $377 Mil, Up a Spectacular 381% or Up By $278 Mil From the 4Q 2016 Net Income of $99 Mil ....................................................................................... $258 Mil or 93% of the $278 Mil Net Income Improvement Was From an Income Tax Benefit Resulting From the US Federal Income Tax Debt Forgiveness Feature Included in the US Trump Tax Cuts Act