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: [89, -29, -43, 99, -63, -80, -73, -50, -58]
Example Output: [30.0, -36.0, 28.0, 18.0, -71.5, -76.5, -61.5, -54.0]

Example Input: [-47, 58, 28]
Example Output: [5.5, 43.0]

Example Input: [25, -37, -13, -75, -97, -38]
Example Output:
[-6.0, -25.0, -44.0, -86.0, -67.5]