Overall death rates are highly affected by age distribution in the population - the proportion of 80-100 year olds in your population in a given year is going t

Overall death rates are highly affected by age distribution in the population - the proportion of 80-100 year olds in your population in a given year is going to have a big impact on the death rate that year. Death rates for an age range (like 18-45) are likely to be much more stable. Also, pretty dubious about that specific dataset - it looks like it includes linear interpolations between a much smaller set of actual datapoints, so not sure you can use it to infer the actual distribution of death rate statistics