In 2007, exports from New Caledonia amounted to 2.11 billion US dollars, 96.3% of which were mineral products and alloys (essentially nickel ore and ferronickel). Imports amounted to 2.88 billion US dollars. 26.6% of imports came from Metropolitan France, 16.1% from other European countries, 13.6% from Singapore (essentially fuel), 10.7% from Australia, 4.0% from New Zealand, 3.2% from the United States, 3.0% from China, 3.0% from Japan, and 22.7% from other countries. it actually holds 11% of the worlds nickkel. Which countries represented more than 15% of New Caledonia's imports each?