	@Test
	public void test_getPercentile_要素数10_割り切れない() {


		List<Long> list = Arrays.asList(new Long[] { 2L, 4L, 6L, 8L, 10L, 12L, 14L, 16L, 18L, 19L });

		assertEquals(18L, MathUtil.getPercentile(list, 90, 0L));
	}