The table explains about the quantity of waste generated by six various nations between 1980 and 2000.The most significant feature is the United State (not. was generated)  generated more wastes than  other five countries. ( not more compared to , rather, it is more than )

In 1980, US produced more wastes (131 million tonnes) whereas, in Ireland, it was only 0.06.  Meanwhile, in Japan, the amount of waste was 28 million while, in Poland and Portugal, it was four (4)  and two(2)  respectively. But the figure of Korea was not recorded in that year. The amount of waste from the US (not. was increased. Was increased means increased by someone) was 151 million tonnes in 1990. ( when figures are given do not use almost and nearly and the like), whereas, Japan and Korea (were created means created by someone) generated almost same quantity of waste, that was 32 and 31 respectively. But, in Poland and Portugal, it was (not waste production was) very less, that was five and three million ( not 5 and 3)  In 2000, only Korea cut down waste production to 19. On the other hand, America’s contribution (not was increased) went up dramatically to 192 in 2000 while, in Japan, it was 53.

To conclude, the total amount of waste the US had at the end of the study period was more than the total waste generated by all the countries all through the years.