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: [54, -28, -32]
Example Output: [13.0, -30.0]

Example Input: [-56, 71, 54, -28, 75, -89, -82, 39, -12, 81, 37, 35, 39, 66, 60]
Example Output: [7.5, 62.5, 13.0, 23.5, -7.0, -85.5, -21.5, 13.5, 34.5, 59.0, 36.0, 37.0, 52.5, 63.0]

Example Input: [17, -67, -21, 34, 83, -11, -18, 19, 61, 60, 18, -62, -37, 50, -99]
Example Output:
[-25.0, -44.0, 6.5, 58.5, 36.0, -14.5, 0.5, 40.0, 60.5, 39.0, -22.0, -49.5, 6.5, -24.5]