Figure 2 in https://gurven.anth.ucsb.edu/sites/secure.lsit.ucsb.edu.anth.d7_gurven/files/sitefiles/papers/GurvenKaplan2007pdr.pdf https://gurven.anth.ucsb.edu/s

Figure 2 in https://gurven.anth.ucsb.edu/sites/secure.lsit.ucsb.edu.anth.d7_gurven/files/sitefiles/papers/GurvenKaplan2007pdr.pdf https://gurven.anth.ucsb.edu/sites/secure.lsit.ucsb.edu.anth... suggests that about 15% of hunter-gatherers would reach age 70.