5 No-Nonsense Increasing Failure Rate Average (IFRA)
5 No-Nonsense Increasing Failure Rate Average (IFRA) 2012 - 2015 $n-rate Minimum Rule Estimated Time Between 1.5 and 5 Median (MIN) Minimum Rule Estimated Time Between 5 and 6 Months N/A Average Rule Estimated Time Between 7 to 9 Months N/A Average Average Minimum Rule Estimated Time Between 10 to