### Instruction: What country has the highest life expectancy?
### Response: Life expectancy for humans has doubled over the last century but there’s still a noticeable gap in average life expectancies between different countries. In general, developed countries see higher life expectancies than developing regions but over time the gap is expected to narrow. Based on the data from the World Bank including both the healthcare spending per capita of 178 different countries, Japan has the highest life expectancy at birth 85 years.