fewer than 20,£1,
20–29,£2,
30–39,£3,
40–49,£4,
50–59,£5,
60–69,£6,
70–79,£7,
80–89,£8,
90–99,£9,
100–149,£10,
150–199,£15,
200–249,£20,
250–299,£25,
300–349,£30,
350–399,£35,
400–449,£40,
450–499,£45,
500 or more,£50,