Note that most of this period falls before the modern inflation target was established in 1995. In the past 30 years we've had 75% accumulated annual inflation (aka prices have increased be a factor of exp(0.75) = 2.1) of which 16% (aka 21% of the total) took place during an inflation excursion (which lasted 2.5 years aka 8% of the total time period).
If anything the data points at "inflation targeting works and is producing slow and steady inflation" rather than "inflation comes in concentrated bursts".
If anything the data points at "inflation targeting works and is producing slow and steady inflation" rather than "inflation comes in concentrated bursts".