During the operation the respondents have less than five years, the most of 39 percent, 50.65, followed by a period of five years or more but less than 10 years were 30 per cent 38.96. followed by a period of 10 years or more but less than 15 years of 6 percent, followed by 7.79 for a period of two years up to 15 people, representing 2.60 per cent respectively.
การแปล กรุณารอสักครู่..