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: [66, -73, -61, -3, 2, -47, -91, 97, 58, -62, 81, -71, -43, -40, -65]
Example Output: [-3.5, -67.0, -32.0, -0.5, -22.5, -69.0, 3.0, 77.5, -2.0, 9.5, 5.0, -57.0, -41.5, -52.5]

Example Input: [-31, 21, -23]
Example Output: [-5.0, -1.0]

Example Input: [99, -28, -18, -89, -14, -80, -54, -84, -82]
Example Output:
[35.5, -23.0, -53.5, -51.5, -47.0, -67.0, -69.0, -83.0]