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                                                           The Improvement Challenge        7




                               60
                                                                54
                               50  46
                                         42                                      42
                                               40    40                    40
                               40
                                                                      34
                               30                         28
                               20

                               10

                                0
                                   1991 1992 1993 1994 1995 1996 1997 1998 1999

                            FIGURE 1-5. Large-loss fires that caused $5 million or more in property dam-
                            age, 1991–1999 adjusted to 1990 dollars. 18

                            sizing that workplace fatalities are now about 60 percent lower than the
                            14,000 annual fatalities occurring when the agency was enacted in 1971, the
                            trend of the 1990s clearly indicates that the performance of businesses in
                            preventing fatalities is stuck on a plateau.



                               Mechanical Failure                                   43%

                                Operational Error                21%

                                     Not Known            14%


                                  Process Upset         11%

                                  Natural Hazard  5%

                                   Design Error   5%

                                 Sabotage/Arson  1%

                                            0%   5%  10%  15%  20%  25%  30%  35%  40%  45%

                                                  PERCENT OF LOSSES

                            FIGURE 1-6. Causes of hydrocarbon-chemical industry property damage losses:
                            1967–1996. From J&H Marsh & McLennan, Inc. 19
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