There were more Chinese than any other tourists in Japan this year.
More Chinese people came to Japan this year than any other country.
この場合、次のような言い方ができますよ。
ーThere were more Chinese than any other tourists in Japan this year.
「今年日本のどの観光客より、もっと中国人がいた」＝「今年日本に来た外国人観光客で中国人が一番多かった」
ーMore Chinese people came to Japan this year than any other country.
「今年、他のどの国よりも多くの中国人が日本に来ました」
ご参考まで！
カナダ 
