| Country or Area | Subgroup | Year | Source | Unit | Value | |
|---|
| Afghanistan | Total | 2011 | UN_United Nations Population Division | Years | 49 |
| Afghanistan | Total | 1990 | UN_United Nations Population Division | Years | 42 |
| Afghanistan | Total | 1970 | UN_United Nations Population Division | Years | 35 |
| Albania | Total | 2011 | UN_United Nations Population Division | Years | 77 |
| Albania | Total | 1990 | UN_United Nations Population Division | Years | 72 |
| Albania | Total | 1970 | UN_United Nations Population Division | Years | 67 |
| Algeria | Total | 2011 | UN_United Nations Population Division | Years | 73 |
| Algeria | Total | 1990 | UN_United Nations Population Division | Years | 67 |
| Algeria | Total | 1970 | UN_United Nations Population Division | Years | 53 |
| Angola | Total | 2011 | UN_United Nations Population Division | Years | 51 |
| Angola | Total | 1990 | UN_United Nations Population Division | Years | 41 |
| Angola | Total | 1970 | UN_United Nations Population Division | Years | 37 |
| Argentina | Total | 2011 | UN_United Nations Population Division | Years | 76 |
| Argentina | Total | 1990 | UN_United Nations Population Division | Years | 72 |
| Argentina | Total | 1970 | UN_United Nations Population Division | Years | 66 |
| Armenia | Total | 2011 | UN_United Nations Population Division | Years | 74 |
| Armenia | Total | 1990 | UN_United Nations Population Division | Years | 68 |
| Armenia | Total | 1970 | UN_United Nations Population Division | Years | 70 |
| Australia | Total | 2011 | UN_United Nations Population Division | Years | 82 |
| Australia | Total | 1990 | UN_United Nations Population Division | Years | 77 |
| Australia | Total | 1970 | UN_United Nations Population Division | Years | 71 |
| Austria | Total | 2011 | UN_United Nations Population Division | Years | 81 |
| Austria | Total | 1990 | UN_United Nations Population Division | Years | 75 |
| Austria | Total | 1970 | UN_United Nations Population Division | Years | 70 |
| Azerbaijan | Total | 2011 | UN_United Nations Population Division | Years | 71 |
| Azerbaijan | Total | 1990 | UN_United Nations Population Division | Years | 65 |
| Azerbaijan | Total | 1970 | UN_United Nations Population Division | Years | 65 |
| Bahamas | Total | 2011 | UN_United Nations Population Division | Years | 76 |
| Bahamas | Total | 1990 | UN_United Nations Population Division | Years | 69 |
| Bahamas | Total | 1970 | UN_United Nations Population Division | Years | 66 |
| Bahrain | Total | 2011 | UN_United Nations Population Division | Years | 75 |
| Bahrain | Total | 1990 | UN_United Nations Population Division | Years | 72 |
| Bahrain | Total | 1970 | UN_United Nations Population Division | Years | 64 |
| Bangladesh | Total | 2011 | UN_United Nations Population Division | Years | 69 |
| Bangladesh | Total | 1990 | UN_United Nations Population Division | Years | 59 |
| Bangladesh | Total | 1970 | UN_United Nations Population Division | Years | 42 |
| Barbados | Total | 2011 | UN_United Nations Population Division | Years | 77 |
| Barbados | Total | 1990 | UN_United Nations Population Division | Years | 75 |
| Barbados | Total | 1970 | UN_United Nations Population Division | Years | 69 |
| Belarus | Total | 2011 | UN_United Nations Population Division | Years | 70 |
| Belarus | Total | 1990 | UN_United Nations Population Division | Years | 71 |
| Belarus | Total | 1970 | UN_United Nations Population Division | Years | 71 |
| Belgium | Total | 2011 | UN_United Nations Population Division | Years | 80 |
| Belgium | Total | 1990 | UN_United Nations Population Division | Years | 76 |
| Belgium | Total | 1970 | UN_United Nations Population Division | Years | 71 |
| Belize | Total | 2011 | UN_United Nations Population Division | Years | 76 |
| Belize | Total | 1990 | UN_United Nations Population Division | Years | 72 |
| Belize | Total | 1970 | UN_United Nations Population Division | Years | 66 |
| Benin | Total | 2011 | UN_United Nations Population Division | Years | 56 |
| Benin | Total | 1990 | UN_United Nations Population Division | Years | 49 |