Date	(US$ Billion)
2019.02	463.94
2019.01	463.04
2018.12	461.78
2018.11	461.38
2018.10	460.18
2018.09	460.44
2018.08	459.88
2018.07	458.50
2018.06	457.12
2018.05	457.28
2018.04	457.13
2018.03	457.19
2018.02	456.72
2018.01	455.72
2017.12	451.50
2017.11	450.47
2017.10	447.79
2017.09	447.22
2017.08	446.43
2017.07	444.45