In 1994, then Prime Minister Goh Chok Tong received a monthly salary of nearly S$96,000 (about $1.15 million a year), while other ministers earned about $48,900 a month ($586,800 a year). This made them among the highest paid government ministers in the world. In October that year, the Government issued a white paper entitled "Competitive Salaries for Competent & Honest Government" which proposed that the salaries of ministers and civil servants be pegged at two-thirds the average principal earned income of the top four earners in six professions: accounting, banking, engineering, law, local manufacturing firms and multinational corporations. These professions were chosen because their top members had general management skills which ministers also had to have. According to the white paper, the one-third "discount" would be "a visible demonstration of the sacrifice involved in becoming a minister". Although "alaries should never be the motivation for persons to become ministers", the financial sacrifice had to be minimized if outstanding and committed Singaporeans were to be encouraged to take on the "risks and public responsibilities of a political career". The benchmark would also be used to determine the pay of the President, Prime Minister, Deputy Prime Minister, Attorney-General, Chairman of the Public Service Commission and judges.