All core indicators for Tokyo's 23 wards accelerated in September, with each measure, including the series excluding special factors, rising month on month. Calculated measures such as the trimmed mean, weighted median and mode also showed an upward trend.
Core price indicators for Tokyo's 23 wards rose month on month in September, based on the calculation methods used for the indicators the Bank of Japan uses to analyze the pass-through between wages and prices. The series excluding special factors and the Tokyo versions of the trimmed mean, weighted median and mode all increased.
The measure excluding fresh food and special factors accelerated to +3.1% in September from +2.6% in August. The measure excluding fresh food, energy and special factors rose to +3.0% in September from +2.5% in August. The measure excluding food, energy and special factors rose to +2.8% in September from +2.1% in August.
The trimmed mean, calculated using national weights, was +2.3% in September and +2.0% in August. The weighted median, also calculated using national weights, was +2.0% in September and +1.8% in August. The mode was +1.6% in September and +1.4% in August. The national low-volatility-items CPI was +2.0% in September and +1.9% in August in the 23 wards.
Overall, all indicators accelerated in September. The particularly pronounced growth in the series excluding special factors, which the Bank of Japan considers important, suggests that underlying price momentum is strengthening.