var exchange_rate = [	[Date.UTC(2025,7,8),1.1648],	[Date.UTC(2025,7,11),1.1622],	[Date.UTC(2025,7,12),1.1606],	[Date.UTC(2025,7,13),1.1711],	[Date.UTC(2025,7,14),1.169],	[Date.UTC(2025,7,15),1.1688],	[Date.UTC(2025,7,18),1.1673],	[Date.UTC(2025,7,19),1.1682],	[Date.UTC(2025,7,20),1.1651],	[Date.UTC(2025,7,21),1.1639],	[Date.UTC(2025,7,22),1.1608],	[Date.UTC(2025,7,25),1.1697],	[Date.UTC(2025,7,26),1.1656],	[Date.UTC(2025,7,27),1.1593],	[Date.UTC(2025,7,28),1.1676],	[Date.UTC(2025,7,29),1.1658],	[Date.UTC(2025,8,1),1.1715],	[Date.UTC(2025,8,2),1.1646],	[Date.UTC(2025,8,3),1.1653],	[Date.UTC(2025,8,4),1.1647],	[Date.UTC(2025,8,5),1.1697],	[Date.UTC(2025,8,8),1.1728],	[Date.UTC(2025,8,9),1.1744],	[Date.UTC(2025,8,10),1.1707],	[Date.UTC(2025,8,11),1.1685],	[Date.UTC(2025,8,12),1.1718],	[Date.UTC(2025,8,15),1.1766],	[Date.UTC(2025,8,16),1.1807],	[Date.UTC(2025,8,17),1.1837],	[Date.UTC(2025,8,18),1.1818],	[Date.UTC(2025,8,19),1.1736],	[Date.UTC(2025,8,22),1.1781]];