Here are the rough figures for my 3 tests.
Test 1
20,400 matches
375 high confidence
1,900 moderate
3,250 low
14,875 very low
Test 2
20,100 matches
400 high confidence
2,050 moderate
3,500 low
14,150 very low
Test 3
18,750 matches
400 high confidence
2,100 moderate
3,750 low
12,500 very low