Government expenditure is a very different metric as that's just what the state spends, not how it generates its income. Which in theory could be almost entirely by the private sector. Here's the US state department quoting the relevant reports (https://www.state.gov/reports/2022-investment-climate-statem...)

"The public sector accounts for nearly 66 percent of GDP. The Norwegian government is the largest owner in Norway, with ownership stakes in a range of key sectors (e.g., energy, transportation, finance, and communications)"[...]