What is the rate range for Grade 4? What is the rate range for Grade 5? What is the percentage grade overlap between Grade 4 and Grade 5? What is the rate range for Grade 14? What is the rate range for Grade 15? What is the percentage grade overlap between Grade 14 and Grade 15? Are the percentage overlaps between grades 4 and 5 the same as between grades14 and 15? What are the implications if the percentage overlap are not the same - what does it say for grades 4 and 5 and what does it say for grades 14 and 15?

Annual Rates by Grade and Step Grade Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 Step 8 Step 9 Step 10 1 $ 20,999 $ 21,704 $ 22,401 $ 23,097 $ 23,794 $ 24,202 $ 24,893 $ 25,589 $ 25,617 $ 26,273 23,612 24,174 24,956 25,617 25,906 26,668 27,430 28, 192 28,954 29,716 W N 25,764 26,623 27,482 28,341 29.200 30,059 30,918 31,777 32,636 33,495 28,921 29,885 30,849 31,813 32,777 33,741 34,705 35,669 36,633 37,597 32,357 33,436 34,515 35,594 36,673 37,752 38,831 39,910 40,989 42,068 a 36,070 37,272 38,474 39,676 40,878 42,080 43.282 44.484 45,686 46,888 40.082 41.418 42,754 44,090 45.426 46,762 48,098 49.434 50,770 52,106 8 44.389 45,869 47,349 48,829 50.309 51,789 53,269 54,749 56.229 57,709 49,028 50,662 52,296 53,930 55,564 57,198 58,832 60,466 62,100 63,734 10 53,990 55,790 57,590 59,390 61,190 62,990 64,790 66,590 68,390 70, 190 11 59,319 61,296 63,273 65,250 67,227 69,204 71, 181 73,158 75,135 77,112 12 71,099 73,469 75.839 78,209 80,579 82.949 85,319 87,689 90,059 92,429 13 84,546 87,364 90,182 93,000 95,818 98,636 101,454 104,272 107,090 109,908 14 99,908 103,238 106,568 109,898 113,228 116,558 119,888 123,218 126,548 129,878 15 117,518 121,435 125,352 129,269 133,186 137,103 141,020 144,937 148,854 152,771