Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Name | Height (m) | Height (ft) | Location | Year built |
| --- | --- | --- | --- | --- |
| Europaturm | 337.5 | 1107.3 | Ginnheimer Stadtweg 90, Bockenheim | 1979.0 |
| Commerzbank Tower | 259.0 | 849.7 | Große Gallusstraße 17–19, Innenstadt | 1997.0 |
| Messeturm | 256.5 | 841.5 | Friedrich-Ebert-Anlage 49, Westend-Süd | 1990.0 |
| Westendstraße 1 | 208.0 | 682.4 | Westendstraße 1, Westend-Süd | 1993.0 |
| Main Tower | 200.0 | 656.2 | Neue Mainzer Straße 52–58, Innenstadt | 1999.0 |
| Tower 185 | 200.0 | 656.2 | Friedrich-Ebert-Anlage 35–37, Gallus | 2011.0 |
| Trianon | 186.0 | 610.2 | Mainzer Landstraße 16–24, Westend-Süd | 1993.0 |
| European Central Bank Headquarters [A ] | 185.0 | 607.0 | Sonnemannstraße/Rückertstraße, Ostend | 2014.0 |
| Opernturm | 170.0 | 557.7 | Bockenheimer Landstraße 2–4, Westend-Süd | 2009.0 |
| Taunusturm [A ] | 170.0 | 557.7 | Taunustor 1-3, Innenstadt | 2014.0 |
| Silberturm | 166.3 | 545.6 | Jürgen-Ponto-Platz 1, Bahnhofsviertel | 1978.0 |
| Westend Gate | 159.3 | 522.6 | Hamburger Allee 2–4, Westend-Süd | 1976.0 |
| Deutsche Bank I | 155.0 | 508.5 | Taunusanlage 12, Westend-Süd | 1984.0 |
| Deutsche Bank II | 155.0 | 508.5 | Taunusanlage 12, Westend-Süd | 1984.0 |
| Skyper | 153.8 | 504.6 | Taunusanlage 1, Bahnhofsviertel | 2004.0 |
| Eurotower | 148.0 | 485.6 | Willy-Brandt-Platz 2, Innenstadt | 1977.0 |
| Frankfurter Büro Center | 142.4 | 467.2 | Mainzer Landstraße 46, Westend-Süd | 1980.0 |
| City-Haus | 142.1 | 466.2 | Platz der Republik 6, Westend-Süd | 1974.0 |
| Gallileo | 136.0 | 446.2 | Gallusanlage 7, Bahnhofsviertel | 2003.0 |
| Nextower | 136.0 | 446.2 | Thurn-und-Taxis-Platz 6, Innenstadt | 2010.0 |
| Pollux | 130.0 | 426.5 | Platz der Einheit 1, Gallus | 1997.0 |
| Garden Tower | 127.0 | 416.7 | Neue Mainzer Straße 46-50, Innenstadt | 1976.0 |
| Henninger Turm | 120.0 | 393.7 | Hainer Weg 60-64, Sachsenhausen-Süd | 1961.0 |
| Messe Torhaus | 117.0 | 383.9 | Ludwig-Erhard-Anlage 1, Bockenheim | 1985.0 |
| AfE-Turm | 116.0 | 380.6 | Robert-Mayer-Straße 5-7, Westend-Süd | 1972.0 |
| Japan Center | 115.0 | 377.3 | Taunustor 2, Innenstadt | 1996.0 |
| Park Tower | 115.0 | 377.3 | Bockenheimer Anlage 46, Westend-Süd | 1972.0 |
| Westhafen Tower | 112.3 | 368.4 | Westhafenplatz 1, Gutleutviertel | 2003.0 |
| IBC Tower | 112.0 | 367.5 | Theodor-Heuss-Allee 70, Bockenheim | 2003.0 |
| Büro Center Nibelungenplatz | 110.0 | 360.9 | Nibelungenplatz 3, Nordend-West | 1966.0 |
| Eurotheum | 110.0 | 360.9 | Neue Mainzer Straße 66–68, Innenstadt | 1999.0 |
| Neue Mainzer Straße 32-36 | 108.6 | 356.3 | Neue Mainzer Straße 32-36, Innenstadt | 1973.0 |
| Holiday Inn Frankfurt City-South | 100.0 | 328.1 | Mailänder Straße 1, Sachsenhausen-Süd | 1972.0 |
Question:
What is the sum of the heights in meters for the commerzbank tower built after 1984?
Answer:
259.0