Closing Market Price and NAV History

Date	Market Price1	Net Asset Value2	Bid/Ask Midpoint	Volume1	Net Assets2
10/31/2019	$52.29	$52.31	$52.32	37,917	$1,093,224,020
10/30/2019	$52.68	$52.67	$52.68	66,340	$1,100,850,164
10/29/2019	$53.00	$52.98	$52.98	108,390	$1,112,485,175
10/28/2019	$52.86	$52.85	$52.84	116,094	$1,109,828,905
10/25/2019	$52.58	$52.56	$52.55	97,915	$1,103,679,584
10/24/2019	$52.14	$52.12	$52.11	110,137	$1,094,427,286
10/23/2019	$52.18	$52.21	$52.21	77,267	$1,096,371,703
10/22/2019	$51.99	$51.97	$51.97	142,097	$1,091,295,605
10/21/2019	$51.65	$51.62	$51.62	62,645	$1,091,688,689
10/18/2019	$51.10	$51.07	$51.08	76,610	$1,080,179,257
10/17/2019	$51.11	$51.08	$51.08	88,468	$1,080,368,214
10/16/2019	$50.96	$50.97	$50.97	158,340	$1,077,936,238
10/15/2019	$51.19	$51.18	$51.17	47,169	$1,082,446,882
10/14/2019	$50.62	$50.60	$50.59	77,456	$1,070,170,769
10/11/2019	$50.64	$50.70	$50.68	161,139	$1,072,255,044
10/10/2019	$49.79	$49.76	$49.77	87,434	$1,052,378,324
10/9/2019	$49.29	$49.28	$49.27	54,078	$1,042,247,908
10/8/2019	$48.88	$48.84	$48.84	82,154	$1,032,974,467
10/7/2019	$49.88	$49.84	$49.84	99,836	$1,054,021,649
10/4/2019	$50.07	$50.08	$50.07	552,414	$1,059,155,650
10/3/2019	$49.63	$49.58	$49.60	122,737	$1,065,880,199
10/2/2019	$49.39	$49.35	$49.37	64,555	$1,061,122,901
10/1/2019	$50.54	$50.49	$50.51	250,439	$1,085,624,300