The following table sets forth the percentages of gross premiums written by each Reinsurance operating unit: The following table sets forth the percentages of gross premiums written, by line, by our Reinsurance operations: Results by Segment Summary financial information about our segments is presented on a GAAP basis in the following table: 8 (1) Represents corporate revenues, corporate expenses, net investment gains and losses, and revenues and expenses from non-insurance businesses that are consolidated for financial reporting purposes. Year Ended December 31, (In thousands) 2018 2017 2016 2015 2014 Insurance Revenue $ 6,456,441 $ 6,229,485 $ 6,148,210 $ 5,876,454 $ 5,586,230 Income before income taxes 856,011 756,153 799,139 748,515 786,723 Reinsurance Revenue 600,815 696,122 777,123 745,325 837,901 Income (loss) before income taxes 62,144 (15,276) 98,277 122,930 155,042 Other(1) Revenue 634,395 759,157 728,851 584,678 704,797 (Loss) income before income taxes (106,061 ) 31,893 (978 ) (139,415 ) 10,431 Total Revenue $ 7,691,651 $ 7,684,764 $ 7,654,184 $ 7,206,457 $ 7,128,928 Income before income taxes $ 812,094 $ 772,770 $ 896,438 $ 732,030 $ 952,196 Year Ended December 31, 2018 2017 2016 2015 2014 Casualty 70.2 % 66.9 % 58.7 % 65.1 % 65.5 % Property 29.8 33.1 41.3 34.9 34.5 Total 100.0 % 100.0 % 100.0 % 100.0 % 100.0 % Year Ended December 31, 2018 2017 2016 2015 2014 Berkley Re America 42.0 % 52.0 % 64.0 % 60.3 % 56.2 % Berkley Re Asia Pacific 14.8 12.8 9.2 8.0 6.7 Berkley Re Solutions 14.1 15.8 10.8 10.1 10.4 Berkley Re UK 22.2 12.6 10.0 15.4 19.9 Lloyd's Syndicate 2791 Participation 6.8 5.5 4.4 5.2 5.3 Other 0.1 1.3 1.6 1.0 1.5 Total 100.0 % 100.0 % 100.0 % 100.0 % 100.0 %