The table gives information about Underground Railroad networks in six big cities regarding when they were opened, the size and the number of users annually

The table compares different

products

, which were exported from Hong Kong over a 1-year period, from 2009 to 2010. The units are measured in Hong Kong

dollars

.

Overall

,

it is clear that

throughout the period given,

the

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export sales saw a considerable increase, apart from clothing and manufacturing goods. Three

products

registered an upward trend in export within a year. The changes

of

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in

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metals

was

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were

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the highest among others, at 122%, from 2.3 to 5.1

billion

HK

dollars

,

while

the figure for exporting equipment showed the lowest percentage of change, with 13%.

However

, the latter one had been the most exported product back in 2009. Exporting telecommunication was

also

the most popular product being exported

which

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followed by metals, and their percentages increased to 61 and 122 % respectively. The proportion of changes in the exports of remaining

products

saw a decrease. In 2009, by exporting clothes, 6

billion

HK

dollars

had been earned. The next year,

in contrast

,

this

product became one of the least

favorable

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favourable

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ones, making 1

billion

HK

dollars

less.

Similarly

, manufacturing

products

also

followed the same pattern, having made 5.5

billion

HK

dollars

in 2009, and in 2010, its figure dropped to 4

billion

HK

dollars

. In total, the profit made by exporting these

products

was

of

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20 %, from 32 to 38.4

billion

HK

dollars

.