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].

[-56, 71, 54, -28, 75, -89, -82, 39, -12, 81, 37, 35, 39, 66, 60]
[7.5, 62.5, 13.0, 23.5, -7.0, -85.5, -21.5, 13.5, 34.5, 59.0, 36.0, 37.0, 52.5, 63.0]

[-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]

[-19, 26, -29, 13, 2, -27, 89, 34, 10, 0, 96, 68, 82, -25]

[3.5, -1.5, -8.0, 7.5, -12.5, 31.0, 61.5, 22.0, 5.0, 48.0, 82.0, 75.0, 28.5]