Bolstered by 591,872 stay-over arrivals and 586,615 cruise ship passengers in 2015, Barbados' tourism sector, as estimated by the WTTC, directly contributed to 12 percent of GDP (US$0.5 billion) and, including indirect effects, contributed 39.5 percent (US$1.7 billion) of total economic activity (WTTC, 2016).