Total Business Sales for May turned up a small amount within a declining trend. This may be the beginning of a new uptrend which would confirm the recent improvement in other economic indications.
Here is year over year percentage change. June needs to go above the zero line to prove things are on the cusp of getting better.
JIT Just in Time inventory practices can be seen in the declining ratio. The spike in 2009 was simply companies being stuck with inventory when the recession hit suddenly and hard. I do not understand why inventory levels have increased since then.