It rose at a steady rate.
SS Balmes happened in 1913.
SS Narragansett happened in 1880.
SS Kurtuluş happened in 1942.
SS Monroe happened in 1914.
SS Mareeba happened in 1941.
SS Vyner Brooke happened in 1942.
SS Ada Hancock happened in 1863.
SS Atlantic Empress happened in 1979.
SS Quinault Victory happened in 1944.
SS El Estero happened in 1943.
SS Columbia Eagle incident happened in 1970.
They jump to the land