6 bar (60 metres / 200 feet)
10 bar (100 metres / 330 feet)
13.5 bar (135 metres / 450 feet)
15 bar (150 metres / 500 feet)
30 bar (300 metres / 1000 feet)
60 bar (600 metres / 2000 feet)
120 bar (1200 metres / 4000 feet)
600 bar (6000 metres / 20000 feet)