Lloyd 's worst results in its long history were in the 1989 through to 1991 years , each producing overall losses of over £ 2bn ; the late 1990s were also punctuated by repeated and significant underwriting losses . In 2001 the calendar year result was a 140 per cent combined ratio , driven largely by claims arising out of the World Trade Center attack , reserve increases for prior-year liabilities and deteriorating pricing levels . However , since then , the market has generally enjoyed profitability in every year except those marked by large natural catastrophes . For example , in 2005 a spate of major Atlantic hurricanes including Hurricane Katrina drove the Lloyd 's overall combined ratio to 112 per cent , while events including the Japanese earthquake and floods in Thailand badly impeded performance in 2011
Japanese earthquake
2011 Tōhoku earthquake and tsunami
Lloyd's of London