In this task you will be given a list of numbers and you need to find the mean (average) of that list. The mean of a list can be found by summing every number in the list then dividing the result by the size of that list. The output should be rounded to 3 decimal places.

Input: Consider Input: [206.606, -76.103, -16.863, 44.126, 4.019, 15.088]

Output: 29.479


Input: Consider Input: [38.24, 196.576, -84.173, -45.001, 1.607, 170.177, 234.811, -60.183, -91.513]

Output: 40.06


Input: Consider Input: [169.165, 20.546, 83.84, -83.69, -12.496, 121.319, 33.638, -28.088, 111.189]


Output: 46.158