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].

[47, -74, 41, -15, 18, 83, -84, -76, -18, 97, -76, -88, -92, 0, -44]
[-13.5, -16.5, 13.0, 1.5, 50.5, -0.5, -80.0, -47.0, 39.5, 10.5, -82.0, -90.0, -46.0, -22.0]

[93, -62, -77, 30]
[15.5, -69.5, -23.5]

[-39, -75, 50, 100, -48, 38, 44, 23, 60, -49, 42, 21, 24, 37, 83]

[-57.0, -12.5, 75.0, 26.0, -5.0, 41.0, 33.5, 41.5, 5.5, -3.5, 31.5, 22.5, 30.5, 60.0]