vote for one candidate at-large of their preference by single non-transferable vote. The eleven at-large candidates with the most votes serve as senators at-large alongside the district senators with the same powers and rights. Senators at-large are expected to serve any individual or group but are not required to do so by law; they also serve as a mechanism for citizens who do not wish to channel their affairs through their district senator for whatever reason. Term Senators serve terms of four years each. A member who has been elected, but not yet seated, is called a "senator-elect"; a member who has been appointed to a seat, but not yet seated, is called a "senator-designate". The Puerto Rico Constitution does not provide for term limits and, in fact, one current senator is completing his ninth four-year term as a senator and his tenth as a legislator. Salary and benefits The annual salary for full-time work of each senator is US$73,775 annually, except for the President of the Senate which receives $110,663, and the President pro tempore, the Majority and Minority Leaders, the Majority and Minority Whips, and the presidents of the Commission on Government and the Commission on Treasury which receive $84,841 each. Senators are allowed to generate additional income from outside their legislative employment subject to restrictions, and only the senators which do not receive an annual salary are entitled to additional benefits such as per diem or car allowance. Costs associated to traveling outside of Puerto Rico is reimbursed. Cost-of-living adjustments have been frozen since 2005. All senators qualify for the same retirement and health benefits as of all other employees of the government of Puerto Rico. In addition, all senators are provided with office space, secretarial services, advisors, support personnel, office supplies, and stationery. Hiring of personnel working directly for each senator is at the discretion of each senator. Rather than providing these resources and services directly, senators are instead assigned a budget from which they retrieve funds to pay for these. Senators that preside commissions are assigned larger budgets than those who don't; creating a difference between the budgets assigned to senators from the party holding a majority in the Senate versus the ones in minority as majority senators tend to be the ones that preside commissions. Majority and minority parties The "Majority party" is the political party that has a majority of seats. The next-largest