9. Short-Term Borrowings and Long-Term Debt Short-term borrowings at March 31, 1999 and 2000 comprised the following: Yen U.S. Dollars (millions) (thousands) 1999 2000 2000 Loans, principally from banks, at interest rates ranging from 0.47% to 8.00% at March 31, 1999 and from 0.08% to 7.60%  at March 31, 2000: Secured ¥ 867 ¥ 580 $ 5,472 Unsecured 573,716 427,851 4,036,330 Commercial paper at interest rates ranging from 0.10% to 0.31% at March 31, 1999 and at 0.07% at March 31, 2000 114,000 1,000 9,434 ¥688,583 ¥429,431 $4,051,236 Long-term debt at March 31, 1998 and 1999 consisted of: Yen U.S. Dollars (millions) (thousands) 1999 2000 2000 Loans, principally from banks and insurance companies,  due from 2000 to 2024 at interest rates ranging from 0.08% to 11.7%  at March 31, 1999 and 2000: Secured ¥ 21,623 ¥ 13,682 $ 129,075 Unsecured 277,956 429,694 4,053,717 Bonds and notes issued by the Company: 1.4% unsecured convertible bonds due 2004 39,649 39,625 373,821 1.9% unsecured convertible bonds due 2002 38,087 24,819 234,142 1.95% unsecured convertible bonds due 2003 39,303 33,936 320,151 2.0% unsecured convertible bonds due 2004 18,044 15,953 150,500 3 $^{1}$/$_{8}$% U.S. dollar bonds due 2000 with warrants 50,341 50,341 474,915 4.1% bonds due 1999 with warrants 35,000 — — 3 $^{3}$/$_{4}$% bonds due 1999 30,000 — — 2.3% bonds due 2001 30,000 30,000 283,019 2.6% bonds due 2002 30,000 30,000 283,019 2.825% bonds due 2001 60,000 60,000 566,038 3.025% bonds due 2002 30,000 30,000 283,019 3.225% bonds due 2003 30,000 30,000 283,019 2.425% bonds due 2003 50,000 50,000 471,698 2.875% bonds due 2006 50,000 50,000 471,698 2.575% bonds due 2004 50,000 50,000 471,698 3.15% bonds due 2009 50,000 50,000 471,698 3.0% dual currency bonds due 2001 30,000 30,000 283,019 2.3% bonds due 2007 50,000 50,000 471,698 2.325% bonds due 2008 50,000 50,000 471,698 3.0% bonds due 2018 30,000 30,000 283,019 2.175% bonds due 2008 50,000 50,000 471,698 2.15% bonds due 2008 50,000 50,000 471,698 Bonds and notes issued by consolidated subsidiaries: Unsecured (2.66% to 3.45%, due 1999—2006) 48,757 47,594 449,000 Less amounts due within one year 110,385 132,255 1,247,689 ¥1,128,375 ¥1,163,389 $10,975,368 35