Large increase in medical cost in Singapore

Here is my finding about the large increase in price of colonoscopy in Singapore in the past four years. Does this increase apply to other medical procedures?

It is quite worrying. Is the minister for health, Gan Kim Yong, paying attention to this matter?

http://www.tankinlian.com/ArticleDisplay.aspx?ID=1301&Name=Cost-of-colonoscopy-in-Singapore&View=A