Have I Bolded the Correct Subordinating Conjunctions in this text?

Hey all, I've bolded all the subordinating conjunctions that I could find in this text. I wanted to run it by you guys for double-checking because I have a feeling that I'm making some mistakes. Thank you!

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The given table compares the figures of a cross-sectional study that investigated the reasons why 100,000 UK residents traveled overseas from 1994 to 1998; whereas the given bar chart demonstrates the countries they visited during this time.

In general, the year 1998 had the largest volume of visits overseas, during which time, western Europe was the most popular destination. On the contrary, the lowest amount of traveling took place in 1995, during which time North America was the least popular choice among travelers.

Specifically, holidays were the most common reason for travel in the given period, which started at 15,246 visits in 1994 and reached a peak of 20,700 trips by 1998. Followed by holidays were business trips and visits to family and friends, which started at 3,155 and 2,689 trips, respectively, in 1994, and gradually climbed to 3,957 and 3,181 trips, respectively, by 1998.

Regarding destinations, western Europe gradually rose from about 19,000 visits in 1994 to
a little over 24,000 visits by 1998. On the other hand, North America and other regions were the least popular choices that had under 4,000 visits each year from 1994 to 1998.