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: [-12, -11, -13, 37, 73, -7, -15, 62, 1, 5, 93, -30, 21, 29, 99]
Example Output: [-11.5, -12.0, 12.0, 55.0, 33.0, -11.0, 23.5, 31.5, 3.0, 49.0, 31.5, -4.5, 25.0, 64.0]

Example Input: [72, -90, -99, -88, -87, -26, -40, -45, 69, 32, 57, 21, -67]
Example Output: [-9.0, -94.5, -93.5, -87.5, -56.5, -33.0, -42.5, 12.0, 50.5, 44.5, 39.0, -23.0]

Example Input: [67, 86, -6, 27, 72, 88, -85, 57, 40, 28]
Example Output:
[76.5, 40.0, 10.5, 49.5, 80.0, 1.5, -14.0, 48.5, 34.0]