-lrb- ho chi minh city thoi bao kinh te saigon 6-12 jan 94 p 6 -rrb- industrial output increases to $ 1.9 billion in 1993 - according to the general department of statistics and the ho chi minh city bureau of statistics , vietnam 's industrial output was worth approximately $ 1.9 billion in 1993 , a 12-percent increase over 1992 .