text: The cells in the grid have different colors.**White**grid cells denote that the user can enter data,**green**cells mean that 
  the data is automatically calculated by the NAIIS application,**light blue**cells signify that data are automatically 
  copied from a different node (for example in 1.B.1.a.1.i), and**yellow**cells mean that a default value (for example, 
  fraction of carbon stored in reference approach) is provided. Where the cell is**grey,**no input is necessary. (figure 24) 
  
  In the energy sector, users are provided a dropdown list to select a unit in reporting the consumption and production 
  
  of fuels. This is marked with  . 