Closing Market Price and NAV History

Date	Market Price1	Net Asset Value2	Bid/Ask Midpoint	Volume1	Net Assets2
6/29/2018	$72.16	$71.70	$71.77	4,638	$175,657,790
6/28/2018	$71.72	$71.60	$71.62	14,058	$175,410,858
6/27/2018	$71.38	$70.99	$71.12	6,838	$173,924,816
6/26/2018	$72.37	$72.29	$72.30	21,413	$173,485,749
6/25/2018	$71.67	$71.89	$71.90	8,097	$172,546,398
6/22/2018	$73.50	$73.59	$73.58	21,354	$176,605,855
6/21/2018	$74.08	$74.05	$74.06	3,571	$177,725,982
6/20/2018	$74.91	$74.86	$74.87	3,945	$179,670,483
6/19/2018	$74.35	$74.39	$74.39	9,348	$178,528,924
6/18/2018	$74.75	$74.74	$74.74	15,058	$179,380,943
6/15/2018	$74.43	$74.45	$74.53	9,241	$178,678,039
6/14/2018	$74.50	$74.52	$74.53	74,990	$175,121,341
6/13/2018	$74.23	$74.13	$74.13	13,143	$174,196,022
6/12/2018	$74.38	$74.31	$74.32	111,272	$174,617,019
6/11/2018	$73.85	$73.75	$73.84	6,626	$162,253,490
6/8/2018	$73.85	$73.73	$73.78	8,926	$162,215,080
6/7/2018	$73.36	$73.27	$73.30	34,351	$161,185,745
6/6/2018	$73.76	$73.85	$73.85	16,143	$162,471,323
6/5/2018	$73.33	$73.23	$73.29	64,283	$161,110,881
6/4/2018	$72.84	$72.81	$72.83	5,592	$152,893,180
6/1/2018	$72.52	$72.42	$72.43	19,152	$152,091,056