1 = MALE
2 = FEMALE

1 = <2 years
2 = 2~5 years
3 = 5~10 years
4 = >10 years

1 = 1~100
2 = 101~250
3 = 251~500
4 = 500~1,000
5 = >1,000

1 = <1 million
2 = 1~5 million
3 = 5~10 million
4 = 10~20 million
5 = 20~50 million
6 = 50~100 million
7 = >100 million

1 = state owned
2 = private owned
3 = joint venture
4 = foreign owned