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: [18.155, 114.069, 197.871, -99.696, 201.18]

Output: 86.316


Input: Consider Input: [-81.517, 126.001, 203.19, 236.819, 36.037, 152.691, -1.444, -37.296]

Output: 79.31


Input: Consider Input: [192.529, -67.249, 123.707, 41.987, 11.587, 202.189, 12.989]


Output: 73.963