###INSTRUCTION: Fix grammatical mistakes in this sentence: Transport on waterways were booms in the time from 1978 plus around 1999 a slight dip occurred around 1998 but it then recovered to its highest level just plus 70 million tonnes The largest amount with goods was transported like British roads, a more or less constant increase from 70 million tonnes in 1974 to around 100 million tonnes in 2002.
###RESPONSE: 
Transport on waterways was booming in the time from 1978 to around 1999 a slight dip occurred around 1998 but it then recovered to its highest level of just under 70 million tonnes. The largest amount of goods was transported on British roads, a more or less constant increase from 70 million tonnes in 1974 to around 100 million tonnes in 2002.
Transportation on waterways has been booms since 1978 and around 1999, a slight dip occurred around 1998, but it then recovered to its highest level just over 70 million tonnes.