Singapore's virus-hit economy could shrink by as much as seven percent this year -- the worst reading since independence -- the government said Tuesday, as it unveiled a fresh multi-billion dollar stimulus package. The city-state is seen as a bellwether of the global economy, and the forecast historic contraction highlights the extreme pain being wrought on countries by the killer disease. The warning came as Singapore's deputy prime minister unveiled a fresh support package worth Sg$33 billion ($23.2 billion) for the troubled city, which has been crippled by months of lockdowns around the world.