25. Unaudited selected quarterly financial data

Unaudited selected quarterly financial data are as follows:


	Quarter Ended
	2019
	December 31,		September 30,		June 30,		March 31,		Total
Project revenue	$	66.2	$	71.1	$	71.3	$	73.0	$	281.6
Project (loss) income		(33.4)		27.9		21.7		30.6		46.8
Net (loss) income		(63.4)		14.3		2.9		2.4		(43.8)
Net (loss) income attributable to Atlantic Power Corporation		(65.3)		12.6		1.2		8.9		(42.6)

(Loss) income per share attributable to Atlantic Power Corporation	$	(0.60)	$	0.12	$	0.01	$	0.08	$	(0.39)
Weighted average number of common shares outstanding-basic		109.3		109.4		109.7		108.9		109.3
Diluted (loss) income per share attributable to Atlantic Power Corporation	$	(0.60)	$	0.10	$	0.01	$	0.07	$	(0.39)
Weighted average number of common shares outstanding-diluted		109.3		137.8		110.2		138.6		109.3


	Quarter Ended
	2018
	December 31,		September 30,		June 30,		March 31,		Total
Project revenue	$	70.7	$	65.4	$	66.2	$	80.0	$	282.3
Project income		20.1		26.2		13.6		28.3		88.2
Net income (loss)		26.7		(4.7)		1.0		14.2		37.2
Net income (loss) attributable to Atlantic Power Corporation		24.7		(3.2)		(0.6)		15.9		36.8

Income (loss) per share attributable to Atlantic Power Corporation	$	0.23	$	(0.03)	$	(0.01)	$	0.14	$	0.33
Weighted average number of common shares outstanding-basic		109.6		111.1		112.4		114.8		112.0
Diluted income (loss) per share attributable to Atlantic Power Corporation	$	0.18	$	(0.03)	$	(0.01)	$	0.12	$	0.29
Weighted average number of common shares outstanding-diluted		140.7		111.1		112.4		140.6		141.8