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.

Ex Input:
[222.94, 54.014, 232.208, -16.089, 214.915, 2.232]

Ex Output:
118.37


Ex Input:
[108.26, -20.681, 127.479, -29.352]

Ex Output:
46.426


Ex Input:
[215.084, 106.628, -71.433, -27.602, 213.328, 109.156, -37.15, 176.046, 182.021]

Ex Output:

96.231