传真第一页收费1.10美元，此后每页70美分。

Faxes cost $1.10 for the first page, and 70 cents for each page ___thereafter.

失业率此后开始逐年上升，并在1998年3月达到最高点（约5.5%）。

The unemployment rate ___thereafter started to rise yearly and reached its highest rate in March 1998 ___approximately 5.5%.

该公司在一月份推出了该产品，此后销量激增。

The company launched the product in January, and sales surged ___thereafter.