Japan\'s unemployment rate in September improved 0.1 percentage from 4.1 percent in August to 4. 0 percent, the government said Tuesday. The number of unemployed people declined a seasonally adjusted 3.3 percent from previous month to 2.63 million, the Ministry of Internal Affairs and Communications said in a preliminary report, citing companies are willing to hire more workers as the main reason. According to the report, those quitting jobs at their own was down 7.1 percent to 920,000 in the reporting period. By industry, the construction sector added 270,000 jobs on monthly basis while agriculture and forestry added 230,000 and manufacturers cut 180,000, the ministry said. Separate data showed the nation\'s job availability was flat. The ratio of employment offers to seekers was unchanged at 0.95 from August, which means 95 positions were available for every 100 job seekers.