The graph shows average carbon dioxide emissions per person in the United Kingdom, Sweden, Italy and Portugal between 1967 and 2007. Summarize the information by selecting and reporting the main features, and make comparisons where relevant. v.2

The line graph illustrates the average emission of carbon dioxide per person in four countries, namely United Kingdom, Sweden, Italy and Portugal, from1967 to 2007. Overall, through the surveyed period, the carbon dioxide emitted by the UK and Sweden generally declined, while a reverse trend can be viewed in Italy and Portugal. First of all, the UK emitted the most CO2 (roughly 11 metric tonnes) in 1967. This figure steadily decreased to 9 metric tonnes over four decades even though it still produced the most CO2 in the four measured countries. The CO2 emissions in Sweden took the second place. Its figure started at 9 metric tonnes in 1967, and then gradually rose to 10. 5 metric tonnes before continually dropping to the bottom at 5. 5 metric tonnes in 2007. By contrast, the CO2 emissions in Italy began at just over 4 metric tonnes in 1967, after that the figure gradually went up and exceeded the Sweden statistic after 1987. Thereafter, it grew mildly and levelled off at 7. 5 metric tonnes. Similarly, Portugal also generated more carbon dioxide during the measured period, which started at 1 metric tonnes and ended up at the same figure with Sweden at 5. 5 metric tonnes in 2007.