What the most smallest gold value that have one total over 15 and bronze value 31?
Rank Nation Gold Silver Bronze Total
2001 Asian Judo Championships
14163590
text text real real real real
2-14163590-3
Medal table
Medal table
1 Japan 9 2 4 15
2 South Korea 3 9 3 15
3 Iran 2 0 3 5
4 Mongolia 1 1 8 10
5 North Korea 1 1 2 4
6 Kazakhstan 0 2 4 6
7 Tajikistan 0 1 0 1
8 Chinese Taipei 0 0 4 4
9 Turkmenistan 0 0 2 2
10 Thailand 0 0 1 1
Total Total 16 16 31 63
SELECT MIN Gold FROM table WHERE Total > 15 AND Bronze < 31
15 31