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].

[66, 78, -55, 77, -81, -61, 2, -92, 59, -99, 16]
[72.0, 11.5, 11.0, -2.0, -71.0, -29.5, -45.0, -16.5, -20.0, -41.5]

[-16, -71, 65, -8, 15, 10, -100, -67]
[-43.5, -3.0, 28.5, 3.5, 12.5, -45.0, -83.5]

[89, 98]

[93.5]