i said it before but i'll say it again, all of those "greater than" signs are the wrong way around except the bottom one which correctly reads less than 10,000. for example 10,000>19,999 reads 10,000 is greater that 19,999 which of course it's not. it should be 10,000<19,999 and similarly for the rest.
It may be crap notation, but you're obviously meant to see the > as an arrow and read it as 'to', so the whole label reads as a range. Replace the > with < and it still wouldn't make sense as a label. 10,000<your income<20,000 might appease you but would be rather unwieldy.
It may be crap notation, but you're obviously meant to see the > as an arrow and read it as 'to', so the whole label reads as a range. Replace the > with < and it still wouldn't make sense as a label. 10,000<your income<20,000 might appease you but would be rather unwieldy.