Which models of the Boeing 737 are still in production? The BBC is reporting that the production of 737 aircraft has been reduced from 52 to 42 per month due to a loss of 737-Max orders.  It isn't clear in the report whether the Max is the only 737 being made now.  

Does Boeing currently produce any other models of the 737 or is the Max the only one?
The variants in production are:


700
800
900ER
BBJ
C-40
737 AEW&amp;C
P-8
MAX


In bold are the passenger variants. The BBJ is a business jet variant. The first three are 737 Next Generation. As of February 28, 2019, there is a total of 38 unfilled orders for that family (discounting the military P-8). Whereas there are 4,636 unfilled MAX orders as of the same date.