Selected Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2017



(in millions of dollars, except for per unit data)	Total Revenues		Income Before Income Taxes		Net Income		Net Income Attributable to the Partnership		Limited Partners' Interest in Net Income Attributable to the Partnership		Net Income per Common Unit - Basic and Diluted
2017
First ⁽¹⁾	$	109.1	$	98.1	$	98.1	$	70.8	$	58.7	$	0.33
Second ⁽¹⁾	112.4		91.7		91.7		65.5		51.2		0.29
Third ⁽¹⁾	121.8		99.5		99.5		72.6		55.0		0.31
Fourth	126.8		102.6		102.5		86.4		65.8		0.35

2016 ⁽¹⁾
First	$	117.2	$	99.0	$	99.0	$	55.3	$	52.2	$	0.36
Second	112.9		98.6		98.6		63.8		58.8		0.35
Third	107.7		84.4		84.4		56.3		49.1		0.28
Fourth	115.1		95.5		95.5		69.5		59.8		0.34