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Dividends (Tables)
12 Months Ended
Dec. 31, 2022
Dividends [Abstract]  
Summary of dividends declared and paid per share
The following table provides a summary of dividends declared and paid per share:
 Year Ended December 31,
 202220212020
 DeclaredPaidDeclaredPaidDeclaredPaid
Common shares$4.300 $4.290 $4.260 $4.250 $4.220 $4.210 
5.417% Series 1 Cumulative Convertible Preferred shares$1.354 $1.354 $1.354 $1.354 $1.354 $1.354 
5.0% Series C Cumulative Redeemable Preferred shares (1)$1.250 $1.250 $1.250 $1.250 $1.250 $1.250 
(1) Amount represents dividends per depositary share, each representing 1/1000th of a share.
Summary of income tax status of dividends per share paid
A summary of the income tax status of dividends per share paid is as follows:
 Year Ended December 31,
202220212020
Common shares
Ordinary dividend$3.518 $3.358 $3.452 
Capital gain0.772 0.680 — 
Return of capital— 0.212 0.758 
$4.290 $4.250 $4.210 
5.417% Series 1 Cumulative Convertible Preferred shares
Ordinary dividend$1.110 $1.124 $1.354 
Capital gain0.244 0.230 — 
$1.354 $1.354 $1.354 
5.0% Series C Cumulative Redeemable Preferred shares
Ordinary dividend$1.025 $1.038 1.250 
Capital gain0.225 0.212 — 
$1.250 $1.250 $1.250