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: [-58, -80, -97, 53, -11, -86, -29]
Example Output: [-69.0, -88.5, -22.0, 21.0, -48.5, -57.5]

Example Input: [-32, 35, -68, -34]
Example Output: [1.5, -16.5, -51.0]

Example Input: [28, -99, 78, -40, -50, 26, -62, 12, -26, 40, 17]
Example Output:
[-35.5, -10.5, 19.0, -45.0, -12.0, -18.0, -25.0, -7.0, 7.0, 28.5]