What does any of this mean?

I just got a letter in the mail from another insurance company that my primary insurance company referred me to get a quote from regarding my homeowners insurance. This is what they said: "As part of the underwriting process, our company reviews your credit report. Unfortunately, based on information from the credit report, you are not receiving our best rate. The following are the primary factor(s) that influenced your insurance score rating: 3990 # ACCTS BAD DEBT IN LAST 24 MOS OR DEROG PUB REC OR COLLECTION IS 1 OR MORE NO BAD DEBT ACCTS LAST 2 YR OR NO DEROG PUB RECS OR NO COLLECTION IS BETTER 3354 TOTAL NUMBER OF MONTHS ACCOUNTS HAVE BEEN OPENED IS 1 TO 424 1753 TO 1900 TOTAL NUMBER OF MONTHS ACCOUNTS OPENED IS BETTER 3333 AVERAGE LENGTH OF TIME BANK REV ACCTS HAVE BEEN OPENED IS 42 TO 105 MONTHS 150 MONTHS OR MORE AVERAGE LENGTH OF TIME OPENED IS BETTER

[Redacted] is the consumer reporting agency which supplied us with the credit information. [Redacted] did not make the adverse insurance decision and is not able to explain why that decision was made. You have the right to obtain a free copy of your report. You also have the right to dispute the accuracy or completeness of any information contained in the report by working directly with the consumer reporting agency. To request your credit report, please contact [redacted] within 60 days."