Complex sentence: The company has seen steady growth since 2005; their first year they produced only 161,000 liters, 450,000 liters in 2006 and 720,000 liters in 2007.
Split into simpler sentences: The company has seen steady growth since 2005. Production increased to 450,000 liters in 2006 and to 720,000 liters in 2007.