The fourth king, who had established the National Assembly in 1953,  devolved all executive powers to a council of ministers elected by the people in 1998. He introduced a system of voting no confidence in the king, which empowered the parliament to remove the monarch. The National Constitution Committee in Thimphu started drafting the Constitution of the Kingdom of Bhutan in 2001. In 2005, the fourth king of Bhutan announced his decision to hand over the reins of his kingdom to his son Prince Jigme Khesar Namgyal Wangchuk. The coronation of the king was held in Thimphu at the refurbished Changlimithang Stadium and coincided with the centenary of the establishment of the House of Wangchuck. In 2008, this paved way for the transition from absolute monarchic rule to a parliamentary democratic constitutional monarchy, with Thimphu as the headquarters of the new government, with the national defined objective of achieving "Gross National Happiness" (GNH) concomitant with the growth of Gross National Product (GNP).