Table:
name	rank	out of	source	year

environmental sustainability index	132	146	yale university	2005

greenhouse emissions per capita	74	world	world resources institute	2000

number of species under threat of extinction	37	158	united nations	1999

happy planet index	81	178	new economics foundation	2009

environmental performance index	78	153	yale university / columbia university	2010

total renewable water resources	58	151	cia world factbook	2008

water availability per capita	116	141	united nations	2001

biodiversity richness	13	53	world conservation monitoring centre	1994

carbon efficiency	28	141	carbon dioxide information analysis center	2005

coral reefs area	19	28	united nations	2005

endangered species protection	71	141	cites	2000

land use statistics by country	16	176	cia world factbook	2005

carbon dioxide emissions per capita	70	210	united nations	2003

total carbon dioxide emissions	11	210	united nations	2006

total forest area	47	220	united nations	2007

fresh water withdrawal	11	168	cia world factbook	2000

industrial water pollution	14	129	world bank	2003

A merged cell in a table could be represented by the JSON {'top-left':(x, y), 'bottom-right':(m, n)}, where '(x, y)' and '(m, n)' signify the (row_id, column_id) of the top-left and bottom-right cells in the merged area. Using the shown table image, locate all merged cells and provide their coordinates in this format. Bear in mind that row and column IDs begin from 1.

This table does not contain any merged cells.