0.24 years
female: 43.35 years (2005 est.)

Jamaica
total: 27.25 years
male: 26.55 years
female: 27.97 years (2005 est.)

Japan
total: 42.64 years
male: 40.87 years
female: 44.44 years (2005 est.)

Jersey
total: 40.89 years
male: 40.13 years
female: 41.63 years (2005 est.)

Jordan
total: 22.62 years
male: 23.25 years
female: 21.94 years (2005 est.)

Kazakhstan
total: 28.52 years
male: 26.92 years
female: 30.25 years (2005 est.)

Kenya
total: 18.19 years
male: 18.08 years
female: 18.3 years (2005 est.)

Kiribati
total: 20.05 years
male: 19.61 years
female: 20.58 years (2005 est.)

Korea, North
total: 31.74 years
male: 30.47 years
female: 33 years (2005 est.)

Korea, South
total: 34.51 years
male: 33.53 years
female: 35.53 years (2005 est.)

Kuwait
total: 25.86 years
male: 28.05 years
female: 22.12 years (2005 est.)

Kyrgyzstan
total: 23.39 years
male: 22.52 years
female: 24.27 years (2005 est.)

Laos
total: 18.74 years
male: 18.42 years
female: 19.08 years (2005 est.)

Latvia
total: 39.12 years
male: 35.95 years
female: 42.15 years (2005 est.)

Lebanon
total: 27.34 years
male: 26.28 years
female: 28.43 years (2005 est.)

Lesotho
total: 20.19 years
male: 19.68 years
female: 20.74 years (2005 est.)

Liberia
total: 18.06 years
male: 17.69 years
female: 18.42 years (2005 est.)

Libya
total: 22.68 years
male: 22.8 years
female: 22.56 years (2005 est.)

Liechtenstein
total: 39.22 years
male: 38.74 years
female: 39.68 years (2005 est.)

Lithuania
total: 37.83 years
male: 35.25 years
female: 40.46 years (2005 est.)

Luxembourg
total: 38.51 years
male: 37.56 years
female: 39.48 years (2005 est.)

Macau
total: 35.2 years
male: 34.9 years
female: 35.4 years (2005 est.)

Macedonia
total: 32.8 years
male: 31.7 years
female: 33.9 years (2005 est.)

Madagascar
total: 17.46 years
male: 17.24 years
female: 17.67 years (2005 est.)

Malawi
total: 16.34 years
male: 16.04 years
female: 16.65 years (2005 est.)

Malaysia
total: 23.92 years
male: 23.32 years
female: 24.54 years (2005 est.)

Maldives
total: 17.69 years
male: 17.58 years
female: 17.8 years (2005 est.)

Mali
total: 16.35 years
male: 15.79 years
female: 16.92 years (2005 est.)

Malta
total: 38.36 years
male: 36.91 y