MTBF - AT 4190 - 3 Month Rolling Average
Month - Jan 84 to August 1987
45
0 0 0 0 0 0 0 1 1 0 0 0 2 5 1 4 0 1 0 0 0 0 1 0 0 0
0 2
1 0
0 3 1 0 1 1 0 0 1 0 1 2 0 0 0 6 2 0 0 0
0 1
1 1
1 1
0 5 0 0
0 2 0 0 0 0
0 3 0 2 1 0 0 0 0 0 0 0
0 0 0 0 1 1 0 0 0 0 0 1