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: [87, 22, 13, 9, -28, -51, -58, -11, 40, 60, 25]
Example Output: [54.5, 17.5, 11.0, -9.5, -39.5, -54.5, -34.5, 14.5, 50.0, 42.5]

Example Input: [91, -52, -63, 41]
Example Output: [19.5, -57.5, -11.0]

Example Input: [38, 86, -97, -15, 77, 61, 30, -71, -93, -80, 4, 39, -77]
Example Output:
[62.0, -5.5, -56.0, 31.0, 69.0, 45.5, -20.5, -82.0, -86.5, -38.0, 21.5, -19.0]