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].

[-36, 17, -25, -21, 45, 34, -39, 21, 71]
[-9.5, -4.0, -23.0, 12.0, 39.5, -2.5, -9.0, 46.0]

[-76, -63, 15, 34, 34, 62, 23, -67, -17, 84, -47]
[-69.5, -24.0, 24.5, 34.0, 48.0, 42.5, -22.0, -42.0, 33.5, 18.5]

[-62, -22, 90, -48, 38, -44, 21, -66, 87, 29, 51, -37, 99, -73]

[-42.0, 34.0, 21.0, -5.0, -3.0, -11.5, -22.5, 10.5, 58.0, 40.0, 7.0, 31.0, 13.0]