MTBF - AT 4160 - 3 Month Rolling Average
Month - Jan 84 to August 1987
45
0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0
0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 1 0 0 0 0 0 0 0 2 0
0 0 0 0
0 0 0 0 0 0 0 0 0 1
5 0 0 0 1 0 5 0
0 0 0 0 0 0 0 0 0 1 0 0