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].

[59, 57]
[58.0]

[-74, -2]
[-38.0]

[40, -78, -9, 88, -14, -36, 30, 17, 61, 71, 45, 36, -32, 23, 37]

[-19.0, -43.5, 39.5, 37.0, -25.0, -3.0, 23.5, 39.0, 66.0, 58.0, 40.5, 2.0, -4.5, 30.0]