{
'Seconds' => :seconds,
'Microseconds' => :microseconds,
'Milliseconds' => :milliseconds,
'Bytes' => :bytes,
'Kilobytes' => :kilobytes,
'Megabytes' => :megabytes,
'Gigabytes' => :gigabytes,
'Terabytes' => :terabytes,
'Bits' => :bits,
'Kilobits' => :kilobits,
'Megabits' => :megabits,
'Gigabits' => :gigabits,
'Terabits' => :terabits,
'Percent' => :percent,
'Count' => :count,
'Bytes/Second' => :bytes_per_second,
'Kilobytes/Second' => :kilobytes_per_second,
'Megabytes/Second' => :megabytes_per_second,
'Gigabytes/Second' => :gigabytes_per_second,
'Terabytes/Second' => :terabytes_per_second,
'Bits/Second' => :bits_per_second,
'Kilobits/Second' => :kilobits_per_second,
'Megabits/Second' => :megabits_per_second,
'Gigabits/Second' => :gigabits_per_second,
'Terabits/Second' => :terabits_per_second,
'Count/Second' => :count_per_second,
'None' => :none,
}