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: [-89, -9, -14, -28, 41, 44, 86, 40, 75, 30, -1, 86]
Example Output: [-49.0, -11.5, -21.0, 6.5, 42.5, 65.0, 63.0, 57.5, 52.5, 14.5, 42.5]

Example Input: [-80, 99, -49, -90, 63, 15, 39, -5, -17]
Example Output: [9.5, 25.0, -69.5, -13.5, 39.0, 27.0, 17.0, -11.0]

Example Input: [-87, -36, 30, 21, 25, 16, -69, 69, -99, 56, -69, 35, -36, -62, 80]
Example Output:
[-61.5, -3.0, 25.5, 23.0, 20.5, -26.5, 0.0, -15.0, -21.5, -6.5, -17.0, -0.5, -49.0, 9.0]