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: [-31, 47, -12, 69, 3, 15, 55, 87, 81, 75, -77, -59, -28]
Example Output: [8.0, 17.5, 28.5, 36.0, 9.0, 35.0, 71.0, 84.0, 78.0, -1.0, -68.0, -43.5]

Example Input: [7, -25, 16, 74, -18]
Example Output: [-9.0, -4.5, 45.0, 28.0]

Example Input: [26, 13, -58, -6, -44, -76, 51, 42, -22, -65]
Example Output:
[19.5, -22.5, -32.0, -25.0, -60.0, -12.5, 46.5, 10.0, -43.5]