pre_text: AMERICAN TOWER CORPORATION AND SUBSIDIARIES NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (Tabular amounts in millions, unless otherwise disclosed) 3. PROPERTY AND EQUIPMENT Property and equipment (including assets held under finance leases) consisted of the following: (1) Assets on leased land are depreciated over the shorter of the estimated useful life of the asset or the term of the corresponding ground lease taking into consideration lease renewal options and residual value. (2) Includes fiber and DAS assets. (3) Estimated useful lives apply to improvements only.
table: Estimated Useful Lives (years) (1) December 31, 2019 December 31, 2018
table: Towers Up to 20 $13,930.7 $12,777.9
table: Equipment (2) 2 - 20 1,897.3 1,667.3
table: Buildings and improvements 3 - 32 638.9 628.5
table: Land and improvements (3) Up to 20 2,486.1 2,285.4
table: Construction-in-progress 372.6 358.1
table: Total 19,325.6 17,717.2
table: Less accumulated depreciation (7,241.2) (6,470.1)
table: Property and equipment, net $12,084.4 $11,247.1
question: Analyse this data from a financial earnings document. What was the change in Land and improvements between 2018 and 2019?