Another way you can achieve this functionality without going to the manual refresh button is to use the history component which records all user selection. Although this would need some config.
Then on top of the destination history cells you would need to build a concatenation logic and on top of the concatenation logic you would need to created another logic to get the last but 1 selection for both year and country. Now you can compare this string to your present selection string for both of them and if there is any change you can populate TRUE/False into a cell.
Once this is done you can create the trigger cell on this final logical cell which will only refresh based on if both the selection is different from the earlier selected values.