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: [36, -93, -18, -95, -50, -59, 26, -21, -89, -77, 57, 6, -67]
A:
[-28.5, -55.5, -56.5, -72.5, -54.5, -16.5, 2.5, -55.0, -83.0, -10.0, 31.5, -30.5]