1 3. The tables below shows the amounts, in units of 1000, of cumulative household insurance claims reported in each development year for the incident years from 2015-2019 inclusive. Incident Development Year Year 0 2 3 4 2015 700 1000 2000 2500 2600 2016 900 1600 2500 2800 2017 900 1700 2800 2018 1200 2000 2019 1000 Suppose that payments are made in the middle of each calender year and that claims are fully written off at the end of development year 4. You may ignore inflation. Use the chain ladder method to estimate the total ultimate claim amount payable arising from incidents occurring between 2015 and 2019 inclusive. [ 8 marks]