Closing Market Price and NAV History

Date	Market Price1	Net Asset Value2	Bid/Ask Midpoint	Volume1	Net Assets2
8/31/2017	$43.03	$43.00	$43.03	2,721	$79,763,784
8/30/2017	$42.69	$42.69	$42.72	13,234	$79,183,089
8/29/2017	$42.61	$42.54	$42.57	12,717	$78,912,576
8/28/2017	$42.59	$42.53	$42.62	15,371	$78,898,969
8/25/2017	$42.43	$42.50	$42.51	10,214	$78,832,037
8/24/2017	$42.35	$42.33	$42.33	5,336	$78,527,838
8/23/2017	$42.14	$42.22	$42.22	10,158	$78,315,579
8/22/2017	$42.35	$42.36	$42.35	16,365	$78,576,023
8/21/2017	$42.04	$42.08	$42.09	4,898	$78,056,312
8/18/2017	$42.24	$42.15	$42.16	12,839	$78,189,511
8/17/2017	$42.25	$42.19	$42.16	10,598	$78,267,344
8/16/2017	$42.84	$42.93	$42.94	17,414	$79,636,272
8/15/2017	$43.01	$43.01	$43.00	9,542	$79,784,565
8/14/2017	$43.28	$43.37	$43.37	5,017	$80,455,157
8/11/2017	$42.61	$42.61	$42.59	24,421	$79,044,706
8/10/2017	$42.80	$42.84	$42.84	8,021	$79,460,156
8/9/2017	$43.42	$43.37	$43.41	9,489	$80,458,724
8/8/2017	$43.84	$43.82	$43.85	7,819	$81,293,656
8/7/2017	$43.80	$43.82	$43.82	8,562	$81,290,591
8/4/2017	$43.90	$43.93	$43.93	8,125	$81,495,749
8/3/2017	$43.62	$43.63	$43.64	11,603	$80,940,650
8/2/2017	$43.98	$43.92	$43.91	11,828	$81,465,644
8/1/2017	$44.29	$44.29	$44.29	12,884	$82,154,161