Exhibit 12.1

CALCULATION OF RATIO OF EARNINGS TO FIXED CHARGES AND

EARNINGS TO COMBINED FIXED CHARGES

AND PREFERRED SHARE DISTRIBUTIONS

(In Thousands, Except Ratios; Unaudited)

		Three Months Ended			Fiscal Year Ended April 30,
		July 31, 2008			2008			2007			2006			2005			2004
Earnings
Income from continuing operations		$	2,358		$	11,675		$	11,026		$	8,766		$	7,768		$	7,376
Add:
	Minority interest		647			3,524			3,217			1,892			1,727			2,161
	Combined fixed charges and preferred distributions (see below)		17,824			66,317			60,866			53,070			49,564			41,331
Less:
	Interest capitalized		(343	)		(506	)		(69	)		(21	)		(138	)		(149	)
	Preferred distributions		(593	)		(2,372	)		(2,372	)		(2,372	)		(2,372	)		(33	)
Total earnings		$	19,893		$	78,638		$	72,668		$	61,335		$	56,549		$	50,686
Fixed charges
	Interest expensed	$	16,888		$	63,439		$	58,425		$	50,677		$	47,054		$	41,149
	Interest capitalized		343			506			69			21			138			149
Total Fixed charges		$	17,231		$	63,945		$	58,494		$	50,698		$	47,192		$	41,298
	Preferred distributions		593			2,372			2,372			2,372			2,372			33
Total Combined fixed charges and preferred distributions		$	17,824		$	66,317		$	60,866		$	53,070		$	49,564		$	41,331
Ratio of earnings to fixed charges			1.15			1.23			1.24			1.21			1.20			1.23
Ratio of earnings to combined fixed charges and preferred distributions			1.12			1.19			1.19			1.16			1.14			1.23