I too have wondered why that is happening before so I checked the switch itself and here's what I found out: when an interface is down, for example a FastEthernet port, recall that a FastEthernet port can be 10 or 100 Mbps depending on the device connected to it, it seems that when a FastEthernet port is down, it's default speed is 10 Mbps only. Go check the interface status of your GigabitEthernet1/0/14, if it is down, you will probably see:
GigabitEthernet1/0/14 is down, line protocol is down
Hardware is Gigabit Ethernet, address is 0023.0444.ca0b (bia 0023.0444.ca0b)
MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec
See, the bandwidth is 10 Mbps only when it is down.
Hope that I have helped you.