Total Dividend
Per Share		 Ordinary
Income		 Qualified
Dividend 1		 Total Capital Gain
Distribution		 Unrecaptured
Section
1250 Gain 2		 Qualified
5-Year Gain 2		 Return of
Capital
2019 $2.03 86.8423%       13.1577%
2018 $1.95 85.0566%   2.9924% 2.1958% 11.9510%
2017 $1.86 83.8592%   2.5395% 0.6556% 13.6013%
2016 $1.78 85.0396%       14.9604%
2015 $1.71 80.8362% 1.1114% 1.1030% 0.6465% 18.0608%
2014 $1.65 79.5881% 0.3765% 1.4524% 0.9310% 18.9595%
2013 $1.60 80.0845% 3.5490% 0.0406% 0.0406% 19.8749%
2012 $1.56 77.7147% 0.8555% 4.5031% 3.1340% 17.7822%
2011 $1.53 71.1260%       28.8740%
2010 $1.51 76.4309% 5.4080% 0.0900% 0.0330% 23.4791%
2009 $1.50 99.6788% 0.3212% 0.1178% 0.0000%
2008 $1.48 100.000% 0.0000%
2007 $1.40 99.8440% 0.0296% 0.1560% 0.0000%
2006 $1.32 87.18% 12.82% 1.44% 0.00%
2005 $1.30 99.46% 17.27% 0.17% 0.17% 0.37%
2004 $1.29 70.99% 6.34% 3.21% 22.67%
2003 $1.28 75.71% 3.25% 2.88% 0.37% 21.04%
2002 $1.27 92.41% 0.88% 0.41% 6.71%
2001 $1.26 97.37% 2.63% 2.63% 0.00%
2000 $1.245 91.19% 8.81% 4.46% 0.00%
1999 $1.24 90.54% 1.96% 1.41% 7.50%
1998 $1.23 88.94% 11.06%
1997 $1.20 91.36% 8.64%
1996 $1.18 90.17% 9.83%
1995 $1.16 79.18% 20.82%
1994 $1.14 83.10% 16.90%
1993 $1.10 88.23% 11.77% 0.00%
1992 $1.08 89.32% 0.52% 10.16%
1991 $1.06 81.52% 0.40% 18.08%

Total Dividend Ordinary
Income		 Qualified
Dividend 1		 Total Capital
Gain
Distribution		 Unrecaptured
Section
1250 Gain 2
Preferred Series E
(CUSIP# 637417809)

 $1.42 96.6015% 0.0000% 3.3985% 2.4938%
Preferred Series F
(CUSIP# 637417874)

 $1.30 96.6015% 0.0000% 3.3985% 2.4938%
2017 Preferred Series D
(CUSIP# 637417601)

 $0.31 97.0607% 0.0000% 2.9393% 0.7589%
Preferred Series E
(CUSIP# 637417809)

 $1.42 97.0607% 0.0000% 2.9393% 0.7589%
Preferred Series F
(CUSIP# 637417874)

 $1.30 97.0607% 0.0000% 2.9393% 0.7589%
2016 Preferred Series D
(CUSIP# 637417601)

 $1.65 100.0000% 0.0000% 0.0000% 0.0000%
Preferred Series E
(CUSIP# 637417809)

 $1.42 100.0000% 0.0000% 0.0000% 0.0000%
Preferred Series F
(CUSIP# 637417874)

 $0.23 100.0000% 0.0000% 0.0000% 0.0000%
2015 (CUSIP# 637417601)

 $1.65 98.6534% 1.4134% 1.3466% 0.7896%
Preferred Series E
(CUSIP# 637417809)

 $1.42 98.6534% 1.4134% 1.3466% 0.7896%
2014 Preferred Series D
(CUSIP# 637417601)

 $1.65 98.2062% 0.4027% 1.7938% 1.1498%
Preferred Series E
(CUSIP# 637417809)

 $1.42 98.2062% 0.4027% 1.7938% 1.1498%
2013 Preferred Series D
(CUSIP# 637417601)

 $1.65 99.9491% 3.9296% 0.0509% 0.0509%
Preferred Series E
(CUSIP# 637417809)

 $0.77 99.9491% 3.9296% 0.0509% 0.0509%
2012 Preferred Series D
(CUSIP# 637417601)

 $1.34 94.5229% 1.0406%