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: [53, -70, 12, 14, -11, -69, 85]
Example Output: [-8.5, -29.0, 13.0, 1.5, -40.0, 8.0]

Example Input: [59, 57]
Example Output: [58.0]

Example Input: [-20, 71, -9, 17, -35, 45, -71, 71, 36, -5]
Example Output:
[25.5, 31.0, 4.0, -9.0, 5.0, -13.0, 0.0, 53.5, 15.5]