Conduct a repeated measures ANOVA for the following data.

ID	time1	time2	time3	time4
1	65	66	63	63
2	69	66	62	65
3	60	64	59	59
4	57	54	59	58
5	62	62	62	54
6	67	66	60	57
7	63	58	60	53
8	78	82	83	80
9	70	68	66	65
10	71	65	62	65
11	81	85	83	86
12	57	63	59	61
13	68	57	55	53
14	64	72	68	67
15	71	72	66	65
16	73	65	62	59
17	51	56	51	53
18	78	85	84	82
19	60	57	52	50
20	66	62	58	54
21	71	69	74	72
22	71	69	62	54
23	79	84	78	77
24	79	78	80	91
25	51	45	42	35
26	57	54	57	50
27	70	69	66	71
28	46	41	43	47
29	68	69	63	65
30	51	60	54	47