american tower corporation and subsidiaries notes to consolidated financial statements 2014 ( continued ) operations , net , in the accompanying consolidated statements of operations for the year ended december 31 , 2003 . ( see note 9. ) other transactions 2014in august 2003 , the company consummated the sale of galaxy engineering ( galaxy ) , a radio frequency engineering , network design and tower-related consulting business ( previously included in the company 2019s network development services segment ) . the purchase price of approximately $ 3.5 million included $ 2.0 million in cash , which the company received at closing , and an additional $ 1.5 million payable on january 15 , 2008 , or at an earlier date based on the future revenues of galaxy . the company received $ 0.5 million of this amount in january 2005 . pursuant to this transaction , the company recorded a net loss on disposal of approximately $ 2.4 million in the accompanying consolidated statement of operations for the year ended december 31 , 2003 . in may 2003 , the company consummated the sale of an office building in westwood , massachusetts ( previously held primarily as rental property and included in the company 2019s rental and management segment ) for a purchase price of approximately $ 18.5 million , including $ 2.4 million of cash proceeds and the buyer 2019s assumption of $ 16.1 million of related mortgage notes . pursuant to this transaction , the company recorded a net loss on disposal of approximately $ 3.6 million in the accompanying consolidated statement of operations for the year ended december 31 , 2003 . in january 2003 , the company consummated the sale of flash technologies , its remaining components business ( previously included in the company 2019s network development services segment ) for approximately $ 35.5 million in cash and has recorded a net gain on disposal of approximately $ 0.1 million in the accompanying consolidated statement of operations for the year ended december 31 , 2003 . in march 2003 , the company consummated the sale of an office building in schaumburg , illinois ( previously held primarily as rental property and included in the company 2019s rental and management segment ) for net proceeds of approximately $ 10.3 million in cash and recorded a net loss on disposal of $ 0.1 million in the accompanying consolidated statement of operations for the year ended december 31 , 2003 . 4 . property and equipment property and equipment ( including assets held under capital leases ) consist of the following as of december 31 , ( in thousands ) : .

2005: towers: 4134155
equipment: 167504
buildings and improvements: 184951
land and improvements: 215974
construction-in-progress: 36991
total: 4739575
less accumulated depreciation and amortization: -1279049
property and equipment net: 3460526
2004: towers: 2788162
equipment: 115244
buildings and improvements: 162120
land and improvements: 176937
construction-in-progress: 27866
total: 3270329
less accumulated depreciation and amortization: -996973
property and equipment net: 2273356

5 . goodwill and other intangible assets the company 2019s net carrying amount of goodwill was approximately $ 2.1 billion as of december 312005 and $ 592.7 million as of december 31 , 2004 , all of which related to its rental and management segment . the increase in the carrying value was as a result of the goodwill of $ 1.5 billion acquired in the merger with spectrasite , inc . ( see note 2. ) .

Questions:
what was the amount of property and equipment net in 2005?
and what was it in 2004?
what was, then, the increase over the year?
and what is this increase as a percentage of the 2004 amount?
and what was the increase in the amount of total property and equipment in that same period?
how much did this increase represent in relation to that amount in 2004, in percentage?

Answers:
3460526
2273356
1187170
52.2%
1469246
44.9%