I stand corrected! I have never heard of trolling as a fishing term and I've worked with fishermen!

KWM are you serious? The fishing term is TRAWLING. Trolls were mythical norse beings that were wicked and mischievous. I do hope you're being ironic.

Respectively is required to show monthly is 18 and yearly is 200. Informally you can do without it but when comparing figures I think it should be included. Anwulf was correct, only use a comma if your sentence is getting unwieldy and it's required for clarity.