Land price graph

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Is there anyway that you can place a graph showing land value increase and decrease per city? At the moment I have to goto each city and choose an apartment block to work out what the land value is, but I have no way of knowing if it's increasing or decreasing. So far in CAPLAB all of the land prices have gone up only I assume they could decrease? Or is it not built into the game that land prices can decrease outside of someone building a mine next to your apartment or someone removing alot of the buildings that apartment prices depend on? I know in the UK the land prices have on the whole increased over the last decade or so but there has been land price crashes aswell.