Closing Market Price and NAV History

Date	Market Price1	Net Asset Value2	Bid/Ask Midpoint	Volume1	Net Assets2
3/29/2018	$68.01	$67.59	$67.62	5,513	$128,417,054
3/28/2018	$67.05	$66.57	$66.57	2,734	$126,476,510
3/27/2018	$68.29	$67.03	$67.05	4,048	$127,352,799
3/26/2018	$68.53	$68.59	$68.56	2,496	$130,328,821
3/23/2018	$67.51	$66.77	$66.79	2,236	$126,856,395
3/22/2018	$68.18	$68.25	$68.32	4,538	$129,683,986
3/21/2018	$70.53	$70.12	$70.14	5,051	$133,223,193
3/20/2018	$70.27	$70.10	$70.15	1,507	$133,197,085
3/19/2018	$69.64	$69.70	$69.73	3,468	$132,438,533
3/16/2018	$70.25	$70.45	$70.45	3,071	$133,860,981
3/15/2018	$70.38	$70.28	$70.29	4,726	$133,531,332
3/14/2018	$70.53	$70.46	$70.45	6,363	$133,867,323
3/13/2018	$70.71	$70.60	$70.63	12,182	$134,146,883
3/12/2018	$71.12	$71.04	$71.06	6,992	$134,975,171
3/9/2018	$71.08	$70.99	$70.99	40,450	$134,889,785
3/8/2018	$69.51	$69.77	$69.84	3,136	$136,048,838
3/7/2018	$69.51	$69.51	$69.52	5,268	$135,545,630
3/6/2018	$68.63	$69.08	$69.08	4,040	$134,701,603
3/5/2018	$68.00	$68.46	$68.47	2,645	$130,070,080
3/2/2018	$67.82	$67.85	$67.87	2,483	$128,906,650
3/1/2018	$66.75	$67.00	$67.01	7,145	$127,296,319