<Tr> <Td> Sunday </Td> <Td> 0 </Td> <Td> 0% </Td> </Tr> <Tr> <Th> Total </Th> <Th> 23 </Th> <Th> 100% </Th> </Tr> <Table> <Tr> <Th_colspan="2"> Number of executions </Th> </Tr> <Tr> <Td> 2018 </Td> <Td> 18 </Td> </Tr> <Tr> <Td> 2017 </Td> <Td> 23 </Td> </Tr> <Tr> <Td> 2016 </Td> <Td> 20 </Td> </Tr> <Tr> <Th> Total </Th> <Th> 61 </Th> </Tr> </Table> <Tr> <Th_colspan="2"> Number of executions </Th> </Tr>

When was the last time someone was executed in the united states