今年も、いろんな人にお世話になった年でした。
1年間、ありがとうございました。
来年も頑張りますので、よろしくお願いします。

This year was also a year of being help by lots of people.
Thank you very much for your help in the past year.
I will do my best next year as well, so I look forward to working with you.