出处在此https://yeejj.wordpress.com/2020/05/12/1-5-million-fw/
For example, Australia’s and Japan’s construction workforce are 3.9 times and 2.8 times respectively more productive that their peers in Singapore.
出处的出处在此
https://www.scal.com.sg/resources/ck/files/SCAL%20Circular/Construction%20Productivity%20in%20Singapore_small.pdf
严重怀疑澳洲数据
澳洲工人以效率低出名，干点活喝点咖啡 聊聊天。能超过日本工人这么多。
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