There is a cylindrical container with an inner diameter of 12 centimeters and a height of 20 centimeters. There is a hole with a depth (1/5) of the height (1/5) from the barrel mouth. How many liters of water can this cylindrical container hold at most?
有一个圆柱形容器，内直径12厘米，高20厘米，在离桶口(1/5)处有一深度为高的(1/5)的洞，这个圆柱形容器现在最多能装水多少升？
<result>1.35648</result>