年度

有

无

χ²

P

2013

115 (65.34%)

61 (34.66%)

5.179

0.023 ^a

2014

22 (88.00%)

3 (12.00%)

0.538^b

2015

11 (100.00%)

0

0.017 ^c

2016

15 (93.75%)

1 (6.250%)

0.593^d

2017

22 (91.67%)

2 (8.33%)

0.652 ^e

0.464 ^f