Another affecting factor that can be considered is the trend of employment with relation to the unemployment level. However, China Government has taken strict measures to prevent and stop this situation that creates safe environment for foreign investors. Reports suggest that if China continues to excel at this rate, it ill surpass US GDP soon. Other variations of this analysis are STEP, STEEP, STEEPLE and STEEPLED. Realizing the important of environmental protection, The State Environmental Protection Administration was officially upgraded to a ministry-level agency, the Ministry of Environmental Protection in 1998.