No 18, 99 is to occurances of the number 9, it therefore doesn't count. [rofl]
1:9 2:19 3:29 4:39 5:49 6:59 7:69 8:79 9:89 10:90 11:91 12:92 13:93 14:94 15:95 16:96 17:97 18:98 19:99