T 5 13 4 4 18 5 6 30 T U 2 4 2 6 3 4 5 2 6 4 17 15 2 1 U V 2 2 2 2 2 2 V X X Y 5 6 2 5 2 2 Y Z 1 2 1 4 2 Z A B C D E F G H I J L M N O P Q R S T U V X Y Z Table IX.--Order of frequency of common pairs to be expected in a count of 2,000 letters of Spanish military orders and reports. Based on Table VIII. DE 59 ON 32 AC 24 LA 54 AD 31 EC 24 ES 52 ST 30 CI 23 EN 46 ED 29 IA 23 AR 40 RA 29 DO 22 AS 39 TE 28 NE 22 EL 39 ER 27 AL 21 RE 38 CO 26 LL 21 OR 36 SE 25 PA 20 AN 32 UE 25 PO 20 Alphabetic Frequency Tables (Truesdell) Frequency of occurrence in 1,000 letters of text: