2017 | 2016 | ||||
Dividend yield (%) | 4.00 | 4.00 | |||
Expected volatility range (%) | 26.81 - 35.81 | 29.73 – 38.73 | |||
Risk-free interest rate (%) | 1.00 - 2.01 | 0.36 – 1.05 | |||
Expected life of share options range (years) | 0.50 - 7.36 | 1 - 3.5 | |||
Weighted average exercise price ($) | $0.65 | $0.67 | |||
Model used | Black-Scholes | Black-Scholes |