Figure 8.2 presents similar data to Figure 8.1, except Figure 8.2 focuses on the additional revenue due from higher rates transactions (not the main rate component of those transactions).
Mae ffigurau 8.1 i 8.4 yn rhoi cymarebau (er enghraifft, treth sy'n ddyledus fesul trafodiad neu drafodiadau cyfraddau uwch fel cyfran o'r holl drafodiadau).