Data set 1: 2 Data set 2: 2 Data set 3: 2 Data set 4: 2 Data set 5: 2 Data set 6: 2 Data set 7: 2 Data set 8: 2 Data set 9: 2 Data set 10: 2 Data set 11: 2 Data set 12: 2 Data set 13: 2 Data set 14: 2 Data set 15: 2 Data set 16: 2 Data set 17: 2 Data set 18: 2 Data set 19: 2 Data set 20: 2 Data set 21: 2 Data set 22: 2 Data set 23: 2 Data set 24: 2 Data set 25: 5 Data set 26: 5 Data set 27: 5 Data set 28: 5 Data set 29: 5 Data set 30: 5 Data set 31: 5 Data set 32: 5 Data set 33: 5 Data set 34: 5 Data set 35: 5 Data set 36: 5 Data set 37: 5 Data set 38: 5 Data set 39: 5 Data set 40: 5 Data set 41: 5 Data set 42: 5 Data set 43: 5 Data set 44: 5 Data set 45: 5 Data set 46: 5 Data set 47: 5 Data set 48: 5 Data set 49: 76