Singapore has experienced strong economic growth over the past few decades, averaging around 7.5 percent from 1970 to 2006. Similarly, Singapore’s per capita GDP has also increased from USD$914 in 1970 to USD$4,853 in 1980 and reached USD$12,234 in 1990 with further increase to USD$23,079 in 2000 and approached a record high at USD$30,159 in 2006 (United Nations, 2008). The economic growth is mostly attributed to economic contribution from manufacturing and services industries. Looking at the opportunity cost, it is reasonable for the small island country with scarcity of land to use about one per cent of Singapore’s land area for agricultural purposes (Singapore Department of Statistics, 2008a).