That's always the problem with numbers from China. They have their own unique accounting ways. The communist party tells them what to say, or they get shot. Not to mention that they steal everything from us and sell knockoffs. You can buy a car in China that is exact copy of Chevy. Parts are interchangeable. And slave labor, or they would be toast.
I think the number can be real. I believe it. The reason is the Lunar New Year coming. Chinese is long know to be savers, not spenders. However, when people left their offices and back to their villages, they would spend a lot of money on their Lunar New Year to guy gifts for their love ones. Keep in mind, their New Year is 7-10 days long. The number may be peaked after Lunar New Year.
However, the infrastructure spending that mentioned by PM can be long until 2020 according one of the source I read.