1997 Cases (1710 cases) AU-MORE THAN TWO UTILITIES (3 cases) BS-BUS (9 cases) BT-BUS & TRUCK (1 cases) CC-COOLING COMPANY (2 cases) CT-COMPETITIVE TELEPHONE (381 cases) EL-ELECTRIC (204 cases) GA-GAS (94 cases) GE-GAS & ELECTRIC (4 cases) HT-HEATING (2 cases) RC-RADIO COMMON CARRIERS (2 cases) RR-RAILROAD (35 cases) ST-SEWAGE TREATMENT (219 cases) TP-TELEPHONE (664 cases) TR-TRANSPORTATION (85 cases) WW-WATER WORKS (5 cases)