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: [-83, -69, -51, 12, 67, 99, 74, 77, -6, -81, -13, -70, -34, -8, 25]
Example Output: [-76.0, -60.0, -19.5, 39.5, 83.0, 86.5, 75.5, 35.5, -43.5, -47.0, -41.5, -52.0, -21.0, 8.5]

Example Input: [-2, -26, 60, 94, 36, -43, -53, 74, -93, 51, -46, 85, 23, 71]
Example Output: [-14.0, 17.0, 77.0, 65.0, -3.5, -48.0, 10.5, -9.5, -21.0, 2.5, 19.5, 54.0, 47.0]

Example Input: [27, 19, -99, -37, -93, 80, 99, 21, -9, 85, 28, -15, 17]
Example Output:
[23.0, -40.0, -68.0, -65.0, -6.5, 89.5, 60.0, 6.0, 38.0, 56.5, 6.5, 1.0]