2013 | 2012 | 2011 | |||||||||
Fixed maturity securities | $ | 638.9 | $ | 671.2 | $ | 692.4 | |||||
Equity securities | 45.9 | 38.4 | 34.0 | ||||||||
Cash and cash equivalents | 1.0 | 2.5 | 3.7 | ||||||||
Other | 19.8 | 16.2 | 2.4 | ||||||||
Investment income | 705.6 | 728.3 | 732.5 | ||||||||
Investment expense | (46.5 | ) | (42.2 | ) | (28.8 | ) | |||||
Net investment income | $ | 659.1 | $ | 686.1 | $ | 703.7 | |||||