It is a clear trend for the hissing alveolar fricatives [s] ( c = 4%) and [z] ( c = 3%) and it remains valid for the hushing post-alveolar fricative [S] ( c = 1%).
1
—
—
It is a clear trend for the hissing alveolar fricatives [s] ( c = 4%) and [z] ( c = 3%) and it remains valid for the hushing post-alveolar fricative [S] ( c = 1%).