Problem with Add text to animation GIF by ImageMagick

Do you have a question? Post it now! No Registration Necessary.  Now with pictures!

I use ImageMagick to add text to my animation gif, It's OK but my file
is 4-5 times bigger than before(47.5K --> 195K :( ) The animation have
15 frames
Anyone know how to reduce file size or any better tools(is it better
with GD?)
My command here:
convert aaa.gif -coalesce -gravity South -splice 0x0 -annotate 0
"Copyright" aa.gif
please help

Site Timeline