According to China Market Research Network:

In 2014, Chinese insulated Glass production capacity volume reached 12.086 million square meters, with a growth rate of 21.2% against the same period.

In 2015, Chinese insulated Glass production capacity volume reached 12.086 million square meters, with a drop of 4.9% against the same period.

In 2016, Chinese insulated Glass production capacity volume reached 12.086 million square meters, reducing 18% against the same period.

In January-February, 2017, Chinese insulated Glass production capacity volume reached 14.387 million square meters, increasing 6.9% against the same period.

In January-March, Chinese insulated Glass production capacity volume reached 22.865 million square meters, increasing 4.9% against the same period.