Cezanne Insurance Company, which is based in Johannesburg, South Africa, specialises in providing insurance solutions tailored for large manufacturing risks and is considering different reinsurance options. With a focus on understanding the unique challenges and risks faced by manufacturing industries, Cezanne has positioned itself as a trusted partner for businesses seeking comprehensive insurance coverage and risk management services. Which type of reinsurance would be most suitable if the insurer wants to cede a fixed percentage of each risk it underwrites?