Simple Bubble Chart
70
70
60
60
50
50
40
40
30
30
20
20
10
10
0
0
4
4
65
65
127
127
189
189
250
250
312
312
374
374
435
435
497
497
559
559
620
620
682
682
744
744
Bubble1
Bubble2
Bubble3
Bubble4
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