Closing Market Price and NAV History

Date	Market Price1	Net Asset Value2	Bid/Ask Midpoint	Volume1	Net Assets2
1/31/2020	$82.71	$82.69	$82.66	86,662	$1,108,000,486
1/30/2020	$84.25	$84.30	$84.29	37,317	$1,129,675,134
1/29/2020	$85.25	$85.28	$85.28	55,854	$1,142,691,886
1/28/2020	$85.44	$85.42	$85.41	33,742	$1,148,856,137
1/27/2020	$84.57	$84.55	$84.53	44,579	$1,137,180,516
1/24/2020	$85.78	$85.60	$85.77	52,950	$1,151,285,948
1/23/2020	$86.95	$87.00	$87.01	83,230	$1,174,515,165
1/22/2020	$87.45	$87.42	$87.42	78,395	$1,180,143,208
1/21/2020	$87.22	$87.19	$87.19	34,403	$1,177,057,455
1/17/2020	$87.10	$87.09	$87.07	35,089	$1,175,678,385
1/16/2020	$87.34	$87.32	$87.32	85,580	$1,178,824,063
1/15/2020	$86.79	$86.76	$86.76	52,559	$1,171,205,301
1/14/2020	$86.19	$86.21	$86.20	69,451	$1,163,815,814
1/13/2020	$85.32	$85.34	$85.33	44,200	$1,152,078,016
1/10/2020	$85.68	$85.65	$85.65	193,594	$1,156,325,268
1/9/2020	$85.53	$85.50	$85.50	44,578	$1,162,805,324
1/8/2020	$85.06	$85.04	$85.04	69,375	$1,156,591,025
1/7/2020	$84.44	$84.44	$84.43	46,653	$1,152,581,398
1/6/2020	$84.29	$84.31	$84.30	76,575	$1,150,772,377
1/3/2020	$83.62	$83.56	$83.55	114,225	$1,140,654,522
1/2/2020	$84.20	$84.24	$84.24	150,377	$1,149,904,498