HMC987 current consumption

Hi there,


In the datasheet of HMC987LP5E fig. 3 (Current Consumption vs. Num. of Enabled Buffers & Load Resistors) the numbering on the horizontal axis made me run into confusion:
(there are two fives)


Is this a mistake? Was that curve supposed to start from zero instead of '1'?

Please help me clear the confusion.

Thanks.

Regards
Shivam