By the numbers Niagara Falls

6 million: Cubic feet of water that drops from the falls every minute in high flow

2003: Year Kirk Jones became the first person to survive the trip over Niagara Falls without protection of a boat or barrel on Oct. 20

3: Days Jones was held for psychiatric assessment after his stunt

167 feet: Height of American falls

158 feet: Height of Canadian falls

Source: American Heritage Dictionary