TCNR = Total consumption of natural rubber (000 tons)
TPPCT = Total production of passenger cars' tyres (000 units)
TPCVCT = Total production of commercial vehicle cars' tyres (000 units)
TPNRP = Total production of natural rubber products (000 tons)
PSMR20 = Average FOB monthly price of SMR20 (US$ /ton)
STONR = World total stock of natural rubber (000 tons)