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: [-30, 37, -83, -63, 52, 22, 80, 75, -98, -17]
Example Output: [3.5, -23.0, -73.0, -5.5, 37.0, 51.0, 77.5, -11.5, -57.5]

Example Input: [42, 42, 0, -99, -11, 17, -42, -72]
Example Output: [42.0, 21.0, -49.5, -55.0, 3.0, -12.5, -57.0]

Example Input: [-39, 67, -49, -82, 8, -60, 29, -95, 67, 88, 81, 48, -56]
Example Output:
[14.0, 9.0, -65.5, -37.0, -26.0, -15.5, -33.0, -14.0, 77.5, 84.5, 64.5, -4.0]