Regions Avg power tunnel lengths

* and Australia, excl India: Lpower (m)

Decades <1960 <1980 <2000
Africa (16) – 6100 2600
North America (20) – 250 3900
South America (29) 700 4000 4600
Asia* (36) 2500 5300 2000
China (15) – 5500 3600
India (18) – 4400 4600
Japan (20) – 2800 2100
North Europe (27) 2300 4800 6000
Central Europe (47) 5800 3800 3000
South Europe (38) 5000 3800 5700