ISO maintains one of the largest private databases in the world. Each year, we collect some 2 billion detailed records of insurance premiums collected and losses paid. At any one time, ISO's computers store more than 19 billion records. For commercial lines, that data represents 70 to 75 percent of the entire industry's premium volume. For personal lines, the data represents about a third of the industry's premiums. And for all lines, it's the largest and most credible single source of premium and loss statistics.