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: [-4, 7, 3]
Example output: [1.5, 5]
Example explanation: To create the answer, we should first calculate the average of -4 and 7, that is: (-4 + 7 ) / 2 = 1.5, so the first element of the answer is 1.5. Then, we need to calculate the average of 7 and 3, that is: 5. So the second element of the answer is 5.
Q: [-97, -6, 78, -66, -80, 64, -98, -82, 5, -3, -37, 15]
A:
[-51.5, 36.0, 6.0, -73.0, -8.0, -17.0, -90.0, -38.5, 1.0, -20.0, -11.0]