CPI YoY 2.3

[spring]

https://www.bls.gov/news.release/cpi.nr0.htm

CPI Index (MoM):
Forecast: 0.3% / Actual: 0.2%

CPI Index (YoY):
Forecast: 2.4% / Actual: 2.3%

Core CPI (MoM):
Forecast: 0.3% / Actual: 0.2%

Core CPI (YoY):
Forecast: 2.8% / Actual: 2.8%

[spring]

Gasoline (all types) -11.8

Utility (piped) gas service +15.6

这两项怎么差别这么大？