We did a literature review a while back which looked at hours versus accident rate over two broad periods of time, and came up with this. Don't know how much help it is, but I at least hope it's not too confusing. In retrospect, I don't find it very clear myself!
Dave
The graphic above looks at over 9,400 fatal aviation accidents which occurred between 1982 and 2004, and over 500 fatal aviation accidents occurring between 1934 and 1938. The total hours for the pilots in each of those accidents are clustered in groups of 50 hours. This graph shows what percentage of all fatal accidents in the given period of time are associated with each 50 hour range. Take, for example, the first group on the left side of the graph. It shows that between 1934 and 1938, pilots with 0 to 50 hours total time were involved in 23.3% of the fatal accidents, while pilots with 0 to 50 total hours were involved in 2.4% of the fatal accidents between 1982 and 2004. Note that these data are incomplete: for instance, only 44% of the fatal accidents between 1982 and 2004 are accounted for. [snip]
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