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].

[29, 38, -89, -84, 82, -45, -18, 49, -59, 14, 90, -52, -60, 16, -29]
[33.5, -25.5, -86.5, -1.0, 18.5, -31.5, 15.5, -5.0, -22.5, 52.0, 19.0, -56.0, -22.0, -6.5]

[42, -88, 79, -30, 60, 0, -35, -9, -72, 97, -57, -41, -43]
[-23.0, -4.5, 24.5, 15.0, 30.0, -17.5, -22.0, -40.5, 12.5, 20.0, -49.0, -42.0]

[69, 75, -25, 47, -60, 48, 45, -51, -73]

[72.0, 25.0, 11.0, -6.5, -6.0, 46.5, -3.0, -62.0]