Fix grammaticality: water transport has increased as well and in the periods between 1978 and 1982 having its mayor increase reached level of 60 milion tones, stood fairly steady during the next decades of a decrease of about 10% up throughout 1998 and then recuperated an reaching levels out more than 60 milion tonnes by the year 2002.
Water transport increased as well and in the period between 1978 and 1982 had a major increase reaching the level of 60 million tonnes, remaining fairly steady during the next decade with a decrease of about 10% up until 1998 and then recuperating and reaching the level of more than 60 million tonnes by the year 2002.