Please help me with this:

Should you indicate the value of the slope and what physical magnitude it is, angular velocity? Period? linear speed?

number of turns	Radianes (rad)	time t (s)
0	0	14.868
1	2 = 2(3.1416)= 6.2832	16.124
2	4 = 4(3.1416) = 12.5664	17.269
3	6 = 6(3.1416)=18.8496	18.870
4	8 =8(3.1416)=25.1328	20.017
5	10 =10(3.1416)=31.416	21.294
6	12 =12(3.1416)=37.6692	22.656
7	14 =14(3.1416)=43.9824	23.218
8	16 =16(3.1416)=50.2656	25.011
9	18 =18(3.1416)=56.5488	26.469
10	20 =20(3.1416)= 62.832	27.728
11	22 =22(3.1416)= 69.1152	28.979
12	24 =24(3.1416)= 75.3984	30.238
13	26 =26(3.1416)= 81.6816	31.625
14	28 =28(3.1416)= 87.9648	32.879
15	30 =30(3.1416)= 94.248	34.136
16	32 =32(3.1416)= 100.5312	35.398
17	34 =34(3.1416)= 106.8144	36.655
18	36 = 36(3.1416)=113.0976	37.922
19	38 =38(3.1416)= 119.3808	39.182
20	40 =40(3.1416)= 125.664	40.433
21	42 =42(3.1416)= 131.9472	41.695
22	44 =44(3.1416)= 138.2304	42.954