The nation's major life insurance companies have had little success reversing a decline in business, while their capital remains under pressure by depressed share prices, according to half-year financial results posted by the firms by Tuesday.

The seven largest life insurance companies saw the volume of their policies slip for the fifth consecutive year in the fiscal first half. In total, policies in force fell 2 percent from March to account for 1.032 quadrillion yen.

The seven life insurance companies are Nippon Life Insurance Co., Dai-Ichi Mutual Life Insurance Co., Meiji Life Insurance Co., Yasuda Mutual Life Insurance Co., Sumitomo Life Insurance Co., Mitsui Mutual Life Insurance Co. and Asahi Mutual Life Insurance Co.