g a[MONTHC E10N E20N E30N E40N E50N E60N E70N E80N E90N Jan 5060 4430 3715 3200 2970 2670 2400 2050 1870 Feb 5800 5240 4820 4010 3580 3050 2730 2450 1920 Mar 6250 5870 5300 4535 4000 3400 2825 2460 1900 April 6400 5500 4850 4380 3800 3200 2560 2130 1750 May 5570 4700 4240 4000 3440 3000 2500 2080 1840 June 4380 3800 3350 2880 2600 2300 2045 1700 1452 July 2500 2300 2070 1900 1685 1600 1500 1200 1065 Aug 1900 1750 1540 1430 1350 1220 1060 1050 1035 Sept 1950 1840 1700 1560 1430 1340 1200 1100 1050 Oct 2135 2000 1900 1760 1660 1490 1400 1300 1220 Nov 2540 2340 2250 2160 2110 1920 1750 1590 1450 Dec 4210 3480 3000 2730 2400 2075 1900 1800 1550