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: [-77, -52, 64, 34, -9, 29, -91, 90, 8, -87, 34, 1, -8]
Example Output: [-64.5, 6.0, 49.0, 12.5, 10.0, -31.0, -0.5, 49.0, -39.5, -26.5, 17.5, -3.5]

Example Input: [81, 73]
Example Output: [77.0]

Example Input: [-89, -66, 58, 48, -78, -84, 96, -53, -44, 2]
Example Output:
[-77.5, -4.0, 53.0, -15.0, -81.0, 6.0, 21.5, -48.5, -21.0]