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].

[10, 78, -51, -20, 48, 55, -72, -1]
[44.0, 13.5, -35.5, 14.0, 51.5, -8.5, -36.5]

[17, -31, 89, -43, 58, -50, 2, -61]
[-7.0, 29.0, 23.0, 7.5, 4.0, -24.0, -29.5]

[-59, -25, -19, 80, 7, 85, -3, 19]

[-42.0, -22.0, 30.5, 43.5, 46.0, 41.0, 8.0]