The chart shows: The green bars are underwriting profit or loss for the first nine months of each year. The blue bars are net investment gains (investment income net of capital gains or losses) for the same period.
The back story: A long-term downtrend in interest rates has been offset by steadily growing investment amounts, yielding generally increasing interest income.
The takeaway: Three-quarter-year profits come mainly from net investment gains; underwriting losses in occurred in 7 of the 11 three-quarter-years shown.
The chart shows: The blue shows net investment income for the first nine months of each year. The green shows realized capital gains or losses for the same period.
The takeaway: Net investment income, the heart of insurer profits, has been declining steadily for more than a decade.