fix datapoint cache to store data at 3 decimals
fix datapoint cache to store data at 3 decimals

SeedScientific/polio,unicef/rhizome,SeedScientific/polio,unicef/rhizome,unicef/rhizome,SeedScientific/polio,SeedScientific/polio,unicef/polio,unicef/rhizome,unicef/polio,SeedScientific/polio,unicef/polio,unicef/polio