In this task you are given a list of numbers and you need to find the average of each two consecutive values. The average of two numbers a and b is calculated as: (a + b) /2. The output should be a list of the averages of each two consecutive values. A list is presented with two brackets and comma-separated values, like: [1,2,3].

Example Input: [20, 17, 12, -4, 33, -71, 17, -43, 72, -53, 80]
Example Output: [18.5, 14.5, 4.0, 14.5, -19.0, -27.0, -13.0, 14.5, 9.5, 13.5]

Example Input: [-12, 93, -67, 52, -13, 30, -65, 71]
Example Output: [40.5, 13.0, -7.5, 19.5, 8.5, -17.5, 3.0]

Example Input: [-77, -78, 14, 12, -44]
Example Output:
[-77.5, -32.0, 13.0, -16.0]