92 – 93^a

2.2–3.4^a

2.7–3.4^a

0.1–0.4^a

–

(Dong et al. 2006)

92.1–93.4^a

30.0–37.9^b

38.7–44.2^b

2.9–7.0^b

–

(Okorie et al. 2008)

92.1–92.9^a

29.9–32.8^b

39.5–47.8^b

2.8–5.4^b

–

(Ko et al. 2009)

92.3^a

3.1^a

3.6^a

0.3^a

–

(Choi et al. 2009)

–

32 – 33^b

45 – 46^b

1.3–2.1^b

–

(Seo et al. 2011)

90.5–91.7^a

4.1–4.6^a

2.4–2.6^a

0.2^a

0.2^a

(Jiang et al. 2013)

80.2–91.5^a

1.1–4.0^a

2.5–6.9^a

0.1–2.2^a

–

(Lee et al. 2012)

89.0–91.9^a

3.5–5.4^a

2.9–3.4^a

0.1–0.5^a

0.2–0.6^a

(Gao et al. 2011a)

90.8–91.2^a

45.1–46.1^b

32.2–33.9^b

4.3–5.2^b

–

(Wu et al. 2015)

93.2–93.3^a

44.9–48.1^b

18.4–26.5^b

3.4–4.1^b

–

(Yu al. 2015a)

90.1–91.6^a

4.3–4.6^a

2.4–2.7^a

0.1–0.3^a

–

(Xia et al. 2015)