quickly returned to levels last seen in the 1970s. The 'Crud I.loderatco' is over. 30% 25% 20% 15% 10% 0%r OO1.4O COOO1 CO WO Ol vt IOW ONVWW. {"7 {"7 {-• {'? {9 {9 4 • c? 9 9 9 9 2: / 2 "2 .0 .0 .0 .0 O 0 0 0 0 0n• m • cm U. U. U. U. U. U. U. U. U. U. U. U. U. /