NET
15 Make us happy in proportion to the days you have afflicted us, in proportion to the years we have experienced trouble.
Darby
15 Make us glad according to the days [wherein] thou hast afflicted us, according to the years [wherein] we have seen evil.
KJV
15 Make us glad according to the days [wherein] thou hast afflicted us, [and] the years [wherein] we have seen evil.