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: [-81, -11, -100, 66, 29, 28, 31, -36]
Example Output: [-46.0, -55.5, -17.0, 47.5, 28.5, 29.5, -2.5]

Example Input: [58, 51, 76, 8, 35, 37, 94, -73]
Example Output: [54.5, 63.5, 42.0, 21.5, 36.0, 65.5, 10.5]

Example Input: [28, 69, 31]
Example Output:
[48.5, 50.0]