The 1960-present chart in the article is anything but regular, instead showing a steady rise, and doesn't appear to blip up for either the 1984 or 2022 eruptions.
From context your meaning is clear, but I think you got that idiom inverted.
The 1960-present chart in the article is anything but regular, instead showing a steady rise, and doesn't appear to blip up for either the 1984 or 2022 eruptions.