iki yüz is wrong.2000 is iki bin. they usually say iki bin on altı.( no yıl)
however if you what to say in 2016 you should say iki bin on altı yılda.(means in the year of 2016)
I got a "word misspelled" notice for a word pre-supplied in the answer on this (only had to fill in "bin", the rest of the sentence was already there). Seems like the program didn't like its own spelling of "İki"? Weird...