code: public long getMin() {
  		for (int i = 0; i < hits.length(); i++) {
  			if (hits.get(i) > 0) {
  				return i == 0 ? 0 : 1 + bins[i - 1];
  			}
  		}
  		return 0;
  	}
docs: The starting point of interval that contains the smallest value added to
  this histogram.