The northernmost island of Hokkaido over 20 percent of the land but only 5 percent of the Japanese population and produces just 3.8 percent of the total GDP. The island's previous inaccessibility from the rest of Japan was reduced by a direct rail like through the Seikan tunnel under the Tsugaru Strait and better air services. The improved access encourages farmers to grow new breeds of rice and produce daily products and crops linked to the increasing Japanese demand for Western-style foods. Farm products now exceed the value of Hokkaido's traditional natural resource-based industries (fishing, coal mining, and forestry). The 1972 Winter Olympics at Sapporo-now Japan's fifth-largest city-gave a boost to tourism on the island. The recession of the late 1990s, however, affected this region badly, with many bankruptcies and increasing unemployment