International rankings of Iran

Columns: Name | Rank | Out of | Source | Notes | Year
Merchant marine capacity | 31 | 148 | CIA World Factbook | Iran owns a total of 188 ships of which 73 are Iranian flagged ships & 115 ships sail with foreign flags plus one additional foreign ( UAE ) owned ship sailing with Iranian flag ; More info : Iran Shipping Lines ; Iran also has a fleet of 46 marine tankers consisting of 28 VLCC , 9 Suezmax , 5 Aframax , 3 chemical vessels and a single LPG tanker ; The total number of tankers is to be increased to 74 by 2013 and to more than 80 by 2015. ; National Iranian Tanker Company was the world 's fifth largest tanker operator with 43 ships in 2010 & is expected to become the world 's third largest tanker company with 74 ships in 2013 | 2008 | Rail transport network size | 21 | 151 | International Union of Railways | Total rail network length of 11,106 km ; More info : Iran railways | 2008 | Road network size | 29 | 191 | CIA World Factbook | Total road network length of 172,927 km | 2006 | Total length of pipelines | 8 | 120 | CIA World Factbook | Total pipeline length of 36,509 km ; condensate 7 km ; condensate/gas 397 km ; gas 19,161 km ; liquid petroleum gas 570 km ; oil 8,438 km ; refined products 7,936 km ; Iran ranks 4th worldwide by natural gas pipeline length having 32,000 km of gas pipelines in 2010 Iran plans to have 70,000 km of natural gas pipelines by 2025 | 2007 | Length of Liquid Petroleum Gas Pipelines | 6 | 17 | CIA World Factbook | 570 km of LPG pipelines | 2006 | Length of Oil Pipelines | 6 | 97 | CIA World Factbook | 8,256 km of oil pipelines | 2006 | Rapid transit systems | 20 | 53 | Total rapid transit systems statistics by country | 120.1 km of rapid transit network length with 64 stations | 2002

Example questions:
What 's the source acronym for the international ranking that can be measured in pkm ? | What is Iran 's international ranking for the source that excludes motorcycles ? | What 's the French name of the source for the international ranking regarding an Iranian company that 's an associate of the IR ? | When did the first structure open regarding the international ranking with a source indicating an Iranian structure of 229 kilometers ?

Answers:
UIC | 56 | Union internationale des chemins de fer | 1863