Table 3.
Year | Nationwide | Eastern | Middle | Western | P | ||||
---|---|---|---|---|---|---|---|---|---|
MPR | Product specific ΔMPR | MPR | Product specific ΔMPR | MPR | Product specific ΔMPR | MPR | Product specific ΔMPR | ||
2011 | 4.48 | 6.58 | 4.22 | 3.36 | 0.001 | ||||
2012 | 4.20 | −0.16 | 10.34 | −0.08 | 3.64 | −0.10 | 4.73 | 0.04 | 0.001 |
2013 | 4.70 | −0.10 | 9.90 | −0.20 | 4.58 | −0.02 | 4.62 | 0.08 | 0.000 |
2014 | 5.42 | −1.01 | 9.48 | −0.24* | 4.46 | −0.10* | 4.48 | −0.06* | 0.001 |
2015 | 4.58 | −0.22* | 8.76 | −0.14* | 4.43 | −0.09* | 4.40 | −0.06 | 0.003 |
2016 | 11.68 | 0.04 | 12.97 | −0.08 | 5.06 | −0.04 | 5.01 | 0.05 | 0.001 |
*P < 0.05
Product specific Δ MPR: first calculated the differences of MPR of each product between adjacent years and then chose the median value of these differences as Product specific Δ MPR