请阅读下面这张Markdown格式的表格并回答问题。同一行中不同列的单元格用'|'分隔，不同行的单元格用'
'分隔。

表格标题:
82 表7：武汉商品房2007-2012年1月各月成交面积（万平）          
表格:
| 时间 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 2008.0 | 56.0 | 32.0 | 45.0 | 35.0 | 67.0 | 50.0 | 52.0 | 53.0 | 26.0 | 36.0 | 45.0 | 51.0 |
| 2009.0 | 28.0 | 57.0 | 106.0 | 114.0 | 96.0 | 117.0 | 122.0 | 104.0 | 101.0 | 98.0 | 122.0 | 117.0 |
| 2010.0 | 158.0 | 34.0 | 70.0 | 143.0 | 94.0 | 58.0 | 65.0 | 77.0 | 105.0 | 92.0 | 116.0 | 112.0 |
| 2011.0 | 99.0 | 43.0 | 103.0 | 74.0 | 77.0 | 106.0 | 86.0 | 94.0 | 109.0 | 87.0 | 99.0 | 99.0 |
问题:
什么时候武汉的商品房在5月份和6月份成交的面积都大于50万平米？
Answer: